set MCQs
Showing 50 questions (Total: 160)
There are 'e' students in a school studying English and 'a' students studying Arabic. How many students study English and Arabic or both, if 'b' students study both?
Correct Answer:
C: e + a - b
In a class 40% of the students enrolled for Math and 70% enrolled for Economics . If 15% of the students enrolled for both Math and Economics, what % of the students of the class did not enroll for either of the two subjects?
Correct Answer:
A: 5%
Explanation:
In a class 40% of the students enrolled for Math and 70% enrolled for Economics . If 15% of the students enrolled for both Math and Economics, what % of the students of the class did not enroll for either of the two subjects? Correct Answer 5% Only enrolled for math = 40 - 15 = 25% " " economics = 70 - 15 = 55% In both enrolled = 25% + 55% + 15% = 95% ⸫ Did not enrolled = 100 - 95 = 5%
The number of students in each section of a school is 24, After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. The number of new students admited is-
Correct Answer:
A: 24
Explanation:
The number of students in each section of a school is 24, After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. The number of new students admited is- Correct Answer 24 ব্যাখাঃ 4 student নিয়ে section = 16 - 3 = 13 13×24 = 312 students after admitting new students 13 + = 16 section 21 student নিয়ে 16×21 = 336 students নতুন student = 336 - 312 = 24
In class of 50 students, 18 take music, 26 take art, and 2 take both music and art. How many students in the class are not enrolled in either music or art?
Correct Answer:
B: 8
Explanation:
In class of 50 students, 18 take music, 26 take art, and 2 take both music and art. How many students in the class are not enrolled in either music or art? Correct Answer 8 Number of students taking atleast one of the classes = 18 + 26 - 2 = 42 Number of students taking neither of the classes = 50 - 42 = 8
কোনো সেটের সদস্য সংখ্যা ৩ হরে, এর উপসেটের সংখ্যা কতটি হবে?
Correct Answer:
গ: ৮টি
Explanation:
কোনো সেটের সদস্য সংখ্যা ৩ হরে, এর উপসেটের সংখ্যা কতটি হবে? সঠিক উত্তর ৮টি কোনো সেটের সদস্য সংখ্যা ক হলে, উপসেটের সংখ্যা হবে = ২কএখানে, ক =৩, সুতরাং উপসেটের সংখ্যা হবে = ২৩ = ৮টি (উত্তর)
Of the 45 students in a certain class, 28 are in drama club and 31 are in communication club. If 8 of the students are not in either club, how many of the students are in only one of the two clubs?
Correct Answer:
B: 15
Explanation:
Of the 45 students in a certain class, 28 are in drama club and 31 are in communication club. If 8 of the students are not in either club, how many of the students are in only one of the two clubs? Correct Answer 15 Number of students who are atleast in one club = 45 - 8 = 37. Number of students who are in both clubs = 28 + 31 - 37 = 22 Students who are only in one club = 37 - 22 = 15
All the 120 students of 12th Batch BBA Program are members of the members of the IT Club or the Debate Club or both. If 90 students enrolled in the IT Club and 70 students enrolled in the Debate Club, how many students are in both the clubs?
Correct Answer:
A: 40
|x-5|=6 সমীকরণটির সমাধান সেট হলো-
Correct Answer:
গ: {-1, 11}
7 এর গুণিতকের সেট কোন ধরনের সেট?
Correct Answer:
ঘ: অসীম সেট
Rohit is 28th from left end of a row of 50 students and shyam is 28th from right end of the row. How many students are sitting between them?
Correct Answer:
A: 4
The number of students in each section of a school is 24, After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. The number of new students admitted is-
Correct Answer:
A: 24
Explanation:
The number of students in each section of a school is 24, After admitting new students, three new sections were started. Now, the total number of sections is 16 and there are 21 students in each section. The number of new students admitted is- Correct Answer 24 Present section = 16 & present students per section = 21Previous section = 16-3 = 13 & previous students per section = 24So, the number of new students admitted is = 16*21 - 13*24 = 336 - 312 = 24 (Ans)
f(x)=x2+1/(x-1) - 1 হলে, কোনটি সঠিক ?
Correct Answer:
ঘ: f(-1)= -1/2
In group of 15 high school students, 7 study Latin, 8 study French and 3 study neither Latin nor French. How many students study both Latin and French?
Correct Answer:
A: 3
A picnic was arranged by m students . Total cost of the picnic was estimated to be y taka . Unfortunately z students withdrew their names from the picnic. How many more taka would each of the remaining students have to pay?
Correct Answer:
C: y/m-z - y /m
Explanation:
A picnic was arranged by m students . Total cost of the picnic was estimated to be y taka . Unfortunately z students withdrew their names from the picnic. How many more taka would each of the remaining students have to pay? Correct Answer y/m-z - y /m m জন আগে দিত মোট y টাকা 1 " " " " " ym টাকা তখন m - z জন দেয় y টাকা 1 " " ym - z টাকা তাহলে প্রতি 1 জনকে more দিতে হয় ym - z - ym
In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French of German, 9 are taking both courses. How many students are not enrolled in either course ?
Correct Answer:
C: 24
If 6 undergraduate students can complete 9 identical math projects in 3 days, how long (in days) will it take 4 undergraduate students to complete 10 such projects?
Correct Answer:
A: 5
Explanation:
If 6 undergraduate students can complete 9 identical math projects in 3 days, how long (in days) will it take 4 undergraduate students to complete 10 such projects? Correct Answer 5 Hints: (6× 3× 10) / 9× 4 = 5 days
2700 chocolates were distributed among the students of a class. If each students got 3 times as many chocolates as the number of students in the class, find the number of students in the class.
Correct Answer:
A: 30
In a student dormitory there was enough food to feed 300 students for 15 days, Became of admission of some new students the food only lasted for 10 days . How many new students are admitted to the dormitory?
Correct Answer:
C: 150
The number of students in each section of a school is 24. After admitting new students, three new sections were started. Now the total number of sections is 16 and there are 21 students in each section. How many new students were admitted ?
Correct Answer:
A: 24
Explanation:
The number of students in each section of a school is 24. After admitting new students, three new sections were started. Now the total number of sections is 16 and there are 21 students in each section. How many new students were admitted ? Correct Answer 24 ধর্মের কল বাতাসে নড়ে বা ধর্মের ঢাক আপনি বাজে এর অর্থ পাপ কখনও চাপা থাকে না।
In a class of 55 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art?
Correct Answer:
B: 8
Explanation:
In a class of 55 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art? Correct Answer 8 মােট শিক্ষার্থী 50 জন। music ও art দুটি বিষয়ই নেয় 2 জন। | শুধু music নেয় 18 – 2 = 16 জন ,, art , 26 - 2 = 24 ,, বিষয়ই বা যেকোনাে একটি বিষয় নেয় (16 + 24 + 2) বা 42 জন কোনাে বিষয়ই নেয়নি (50 – 42) বা ৪ জন।
In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is two-third of the number of students of 8 years of age which is 48. what is the total number of students in the school?
Correct Answer:
D: 100
Explanation:
In a certain school, 20% of students are below 8 years of age. The number of students above 8 years of age is two-third of the number of students of 8 years of age which is 48. what is the total number of students in the school? Correct Answer 100 Let, the number be x then Number of students above 8 years age = (100 - 201% of x) = 80% of x <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> 48 + <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#xA0;</mo><mfrac><mn>2</mn><mn>3</mn></mfrac></math> of 48 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x21D2;</mo><mfrac><mn>80</mn><mn>100</mn></mfrac></math> x = 80<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x2234;</mo></math> x = 100
All 120 students in a class play cricket or football or both, 75 play cricket and 60 play football. How many students play both?
Correct Answer:
B: 15
Explanation:
All 120 students in a class play cricket or football or both, 75 play cricket and 60 play football. How many students play both? Correct Answer 15 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>n</mi><mo>(</mo><mi>A</mi><mo>&#x222A;</mo><mi>B</mi><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><mo>&#xA0;</mo><mi>n</mi><mo>(</mo><mi>A</mi><mo>)</mo><mo> + </mo><mi>n</mi><mo>(</mo><mi>B</mi><mo>)</mo><mo> - </mo><mi>n</mi><mo>(</mo><mi>A</mi><mo>&#x2229;</mo><mi>B</mi><mo>)</mo></math>⇒ 120 = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>75</mn><mo> + </mo><mn>60</mn><mo> - </mo><mi>n</mi><mo>(</mo><mi>A</mi><mo>&#x2229;</mo><mi>B</mi><mo>)</mo></math>⸫ <math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>n</mi><mo>(</mo><mi>A</mi><mo>&#x2229;</mo><mi>B</mi><mo>)</mo><mo>&#xA0;</mo><mo> = </mo><mo>&#xA0;</mo><mn>15</mn></math>
In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art?
Correct Answer:
B: 8
Explanation:
In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art? Correct Answer 8 50 - 18 - 26 + 2 = 8, as 2 take both art and music , we need to add them, as they get subtracted twice while subtracting 18 and 26 from 50.
A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed 5 teachers and 10 students is :
Correct Answer:
C: 2,100
Explanation:
A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed 5 teachers and 10 students is : Correct Answer 2,100 5C2 × 10 C4 = 2100
আয়তক্ষেত্রের সন্নিহিত বাহু সমান হলে সেটি-
Correct Answer:
ঘ: বর্গক্ষেত্র
Explanation:
আয়তক্ষেত্রের সন্নিহিত বাহু সমান হলে সেটি- সঠিক উত্তর বর্গক্ষেত্র আয়তক্ষেত্রের ক্ষেত্রফল = (দৈর্ঘ্য ´×প্রস্থ) বর্গ একক। : আয়তের দু'টি সন্নিহিত বাহু সমান হলে তাকে বর্গ বলে।
A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is :
Correct Answer:
C: 2,100
Explanation:
A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is : Correct Answer 2,100 5 জন থেকে 2 জন নিয়ে কমিটি করা যায় ⸫ <math xmlns = "http://www.w3.org/1998/Math/MathML"><mmultiscripts><mi>C</mi><mn>2</mn><none/><mprescripts/><mrow/><mn>5</mn></mmultiscripts><mo> = </mo><mfrac><mrow><mn>5</mn><mo>!</mo></mrow><mrow><mn>2</mn><mo>!</mo><mo>(</mo><mn>5</mn><mo> - </mo><mn>2</mn><mo>)</mo><mo>!</mo></mrow></mfrac><mo> = </mo><mfrac><mrow><mn>5</mn><mo>&#xD7;</mo><mn>4</mn><mo>&#xD7;</mo><mn>3</mn><mo>!</mo></mrow><mrow><mo>(</mo><mn>2</mn><mo>&#xD7;</mo><mn>1</mn><mo>)</mo><mn>3</mn><mo>!</mo></mrow></mfrac><mo> = </mo><mfrac><mn>20</mn><mn>2</mn></mfrac><mo> = </mo><mn>10</mn></math> উপায়অনুরুপভাবে, ⸫ <math xmlns = "http://www.w3.org/1998/Math/MathML"><mmultiscripts><mi>C</mi><mn>4</mn><none/><mprescripts/><mrow/><mn>10</mn></mmultiscripts><mo> = </mo><mfrac><mrow><mn>10</mn><mo>!</mo></mrow><mrow><mo>{</mo><mn>4</mn><mo>!</mo><mo>(</mo><mn>10</mn><mo> - </mo><mn>4</mn><mo>)</mo><mo>!</mo><mo>}</mo></mrow></mfrac><mo> = </mo><mfrac><mrow><mn>10</mn><mo>&#xD7;</mo><mn>9</mn><mo>&#xD7;</mo><mn>8</mn><mo>&#xD7;</mo><mn>7</mn><mo>&#xD7;</mo><mn>6</mn><mo>!</mo></mrow><mrow><mo>(</mo><mn>4</mn><mo>&#xD7;</mo><mn>3</mn><mo>&#xD7;</mo><mn>2</mn><mo>&#xD7;</mo><mn>1</mn><mo>)</mo><mn>6</mn><mo>!</mo></mrow></mfrac><mo> = </mo><mfrac><mn>5040</mn><mn>24</mn></mfrac><mo> = </mo><mn>210</mn></math>কমিটি করা যায় (210×10) = 2100 উপায়
In a group of students, 80% of the students weigh less than 60 kg and a total of 32 student weigh less than 50 kg. If 60% of the students weigh at least 50 kg, how many of the students weigh at least 50 kg but less than 60 kg?
Correct Answer:
A: 32
Explanation:
In a group of students, 80% of the students weigh less than 60 kg and a total of 32 student weigh less than 50 kg. If 60% of the students weigh at least 50 kg, how many of the students weigh at least 50 kg but less than 60 kg? Correct Answer 32 Hints: 60 kg এর চেয়ে কম কিন্তু 50kg বা তার চাইতে বেশি ওজনের ছাত্রছাত্রী সং খ্য = (64 - 32) = 32 জন
X number of students in a class agreed to donate a total of Tk. Z to a charity. If 4 students drop out, how much more will each of the rest have to contribute so that the total donation remains the same?
Correct Answer:
B: 4Z/(X2-4X)
Explanation:
X number of students in a class agreed to donate a total of Tk. Z to a charity. If 4 students drop out, how much more will each of the rest have to contribute so that the total donation remains the same? Correct Answer 4Z/(X2-4X) ব্যাখাঃ x শিক্ষার্থীর প্রত্যেকে চাঁদা দেয় z/x টাকা (x - 4) শিক্ষার্থী প্রত্যকে চাঁদা দেয় = z/ x - 4 টাকা বেশি চাদার পরিমান = z/x - 4 - z/x = 4z / x2 - 4x
A box contains m number of chocolates. After distributing the chocolates equally among 16 students you are left with 6 chocolates. Which of the following must be true?
Correct Answer:
B: m-2 is divisible by 4
Explanation:
A box contains m number of chocolates. After distributing the chocolates equally among 16 students you are left with 6 chocolates. Which of the following must be true? Correct Answer m-2 is divisible by 4 ব্যাখাঃ মোট চকলেটের সংখ্যা হবে ( ১৬ এর গুনিতক + ৬) অর্থাৎ সংখ্যাটি ২২, ৩৮, ৫৪ প্রভৃতি হতে পারে। এখন, ২২ + ৪ = ২৬ যা দ্বারা ৮ বিভাজ্য নয় ২২ + ৬ = ২৮ যা দ্বারা ৮ বিভাজ্য নয় ২২ - ২ = ২০ যা ৪ দ্বারা বিভাজ্য নয়
A school district has 1,989 computers, which is approximately one computer for every 68.6 students. Of the following, which is the closest approximation, in thousands, of the number of students in the school district?
Correct Answer:
C: 140
Explanation:
A school district has 1,989 computers, which is approximately one computer for every 68.6 students. Of the following, which is the closest approximation, in thousands, of the number of students in the school district? Correct Answer 140 Hints: 1 টি কম্পিউটার ব্যবহার করে 68.6 জন 1989 টি কম্পিউটার ব্যবহার করে ( 1989×68.6) জন = 1, 36, 445.4 জন যেহেতু কাছাকাছি মান চাওয়া হয়েছে সেহেতু অপশন অনুযায়ী 140 সঠিক উত্তর
Sam ranked ninth from the top and thirty-eight from the bottom in a class. How many students are there in the class?
Correct Answer:
C: 46
Explanation:
Sam ranked ninth from the top and thirty-eight from the bottom in a class. How many students are there in the class? Correct Answer 46 Hints: 9 + 38 - 1 = 46
In a class of 30 students 18 play football, 14 play cricket and 5 do not play any game. How many students play both the game?
Correct Answer:
B: 7
Explanation:
In a class of 30 students 18 play football, 14 play cricket and 5 do not play any game. How many students play both the game? Correct Answer 7 বাক্যের অর্থ - ক্লাসে সবার চেয়ে লম্বা হওয়ায় শিক্ষক তাকে পিছনে বসতে বলেছিল । তাই (c) সঠিক ।
In a class, 20% of the students are below 20 years of age. The number of students above 20 years of age is two-third of the number of students of 20 years of age which is 48. What is the total number of students in the class?
Correct Answer:
D: 100
৭ এর গুনিতকের সেট কোন ধরনের সেট ?
Correct Answer:
ঘ: অসীম
Explanation:
৭ এর গুনিতকের সেট কোন ধরনের সেট ? সঠিক উত্তর অসীম কোন সংখ্যাকে পূর্ণসংখ্যা দ্বারা গুণ করে যে সব সংখ্যা পাওয়া যায় সেই সংখ্যাগুলোকে ঐ সংখ্যার গুণিতক বলে। যে কোনো সংখ্যার গুণিতকের সংখ্যা অসীম।
in a class ,25 students play cricket ,25 play footballand 10 play both.10 play neither cricket nor football.what is the numbar of students in the class?
Correct Answer:
B: 50
f(x)=x^2-5x+6 এবং,f(x)=0 হলে x=কত?
Correct Answer:
ক: 2,3
Explanation:
f(x)=x^2-5x+6 এবং,f(x)=0 হলে x=কত? সঠিক উত্তর 2,3 f(x) = x2 - 5x + 6 f(x) = 0 x2 - 5x + 6 = 0 x2 - 3x - 2x + 6 = 0 x ( x - 3) - 2 ( x - 3) = 0 ( x - 3) ( x - 2) = 0 x - 3 = 0 x = 3 Again, x - 2 = 0 x = 2 x = 3, 2
In a certain school,20% of student are below 8 years of age.The number of students above 8 years of age is two-third of the number of students of 8 years of age which is 48.What is the total number of students in the school?
Correct Answer:
D: 100
f(x) এর একটি উৎপাদক (3x + 2) হলে নিচের কোনটির মান শূন্য হবে ?
Correct Answer:
ক: f-32
A gym class can be divided into 8 teams with an equal number of players on each team or into 12 teams with an equal number of players on each team. What is the lowest possible number of students in the class?
Correct Answer:
B: 24
f(x)=x3+9x3-3x-6 হয়, তবে f(-2)= কত?
Correct Answer:
A: 28
x2-(p+q)x+pq=0 এর সমাধান সেট কোনটি?
Correct Answer:
ক: {p,q}
3x+4x+1=2 এর সমাধান সেট কত?
Correct Answer:
খ: (3,-12)
যদি f(x) =2x+5x-3 হয়, তবে f(3)= কত?
Correct Answer:
গ: অনির্ণেয়
Explanation:
যদি f(x) =2x+5x-3 হয়, তবে f(3)= কত? সঠিক উত্তর অনির্ণেয় <math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>&#x222B;</mo><mfenced><mi>x</mi></mfenced><mo> = </mo><mfrac><mrow><mn>2</mn><mi>x</mi><mo> + </mo><mn>5</mn></mrow><mrow><mi>x</mi><mo> - </mo><mn>5</mn></mrow></mfrac><mspace linebreak = "newline"/><mo>&#x2234;</mo><mo>&#x222B;</mo><mfenced><mn>3</mn></mfenced><mo> = </mo><mfrac><mrow><mn>2</mn><mo>&#xD7;</mo><mn>3</mn><mo> + </mo><mn>5</mn></mrow><mrow><mn>3</mn><mo> - </mo><mn>3</mn></mrow></mfrac><mspace linebreak = "newline"/><mfrac><mrow><mn>6</mn><mo> + </mo><mn>5</mn></mrow><mn>0</mn></mfrac><mo> = </mo><mfrac><mn>11</mn><mn>0</mn></mfrac><mo>&#xA0;</mo><mo>&#xA0;</mo></math> যা অনির্ণেয়
4x=8 হলে x, এর মান কত?
Correct Answer:
খ: 3/2
Explanation:
4x=8 হলে x, এর মান কত? সঠিক উত্তর 3/2 দেওয়া আছে, 4x = 8 বা, (22)x = 23 বা, 22x = 23 বা, 2x = 3 সুতরাং, x = 3/2
At a certain party attended by 32 people, 24 werw students. If 12 of those in attendance were woman, and if 6 of the women in attendance were students, then how many of the men who attended the party were not students?
Correct Answer:
A: 2
F(x) = (x-1)2 হলে, F(5) = ?
Correct Answer:
B: 16
Explanation:
F(x) = (x-1)2 হলে, F(5) = ? Correct Answer 16 F(x) = (x - 1)2 হলে, F(5) = (5 - 1)2 = 42 = 16
৫ উপাদানবিশিষ্ট একটি প্রদত্ত সেটের উপসেটের সংখ্যা হবে --
Correct Answer:
ঘ: ৩২
f(x) = 4x-7x-2 হলে f(2) কত?
Correct Answer:
B: অসংজ্ঞায়িত
F(x) =x-1 দ্বারা বর্ণিত ফাংশনের জন্য F(x) =y হলে x এর মান কত ? (যেখানে y≥0)
Correct Answer:
ক: y2+1
Explanation:
F(x) =x-1 দ্বারা বর্ণিত ফাংশনের জন্য F(x) =y হলে x এর মান কত ? (যেখানে y≥0) সঠিক উত্তর y2+1 y = f (X) = ✓(x - 1) Or, x = y^2 + 1
ফাংশন f(x)=x3-3x2-9x -এর x=2 বিন্দুতে f(x)- এর সর্বনিন্ম মান হবে , কারণ__
Correct Answer:
খ: f" (2)>0