mathematics MCQs
Showing 50 questions (Total: 16798)
A rectangular plot measuring 90 meters by 50 meters is to be enclosed by wire fencing. If the pole of the fence are kept 5 meters apart, how many poles will be needed ?
Correct Answer:
B: 56
Explanation:
A rectangular plot measuring 90 meters by 50 meters is to be enclosed by wire fencing. If the pole of the fence are kept 5 meters apart, how many poles will be needed ? Correct Answer 56 Hints: Perimeter of the rectangle is 2 ( 50 + 90) meter = 280 meters Between 5 meter the required number of poles is = 280/5 = 56
A can run 22.5 m while B runs 25 m. In a kilometer race B will beat A by:
Correct Answer:
A: 100 m
Explanation:
A can run 22.5 m while B runs 25 m. In a kilometer race B will beat A by: Correct Answer 100 m ২০১৬ সালের কোপা আমেরিকায় (শতবর্ষী কোপা) শিরোপা জিতে চিলি। ২০১৫ সালের নিয়মিত কোপা আমেরিকার শিরোপাও চিলির ঘরে যায়। উল্লেখ্য দু - বারই রানার্সআপ হয় আর্জেন্টিনা।
On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb,2004?
Correct Answer:
C: Sunday
Explanation:
On 8th Feb, 2005 it was Tuesday. What was the day of the week on 8th Feb,2004? Correct Answer Sunday ২০২০ সালে ২০ জন ব্যক্তি ও একটা প্রতিষ্ঠান (বাংলাদেশ ফিশারিজ রিসার্চ ইন্সটিটিউট) একুশে পদক লাভ করে। ২০১৮ সালে ছয়টি ক্যাটাগরিতে মোট ২১ জন ব্যাক্তি ‘একুশে’ পদক লাভ করেন।
A 6% stock yields 8%. The market value of the stock:
Correct Answer:
D: Tk. 133.33
Explanation:
A 6% stock yields 8%. The market value of the stock: Correct Answer Tk. 133.33 Hints: Let primary stock value is 100 tk Now, 6 tk stock yield 8 tk 1 tk stock yield 8/6 tk 100 tk stock yield ( 8× 100)/ 6 = 133.33 tk
A stock decreases in value by 25%. By what percent must the value of that stock increase to reach its former value ?
Correct Answer:
A: 30%
Explanation:
A stock decreases in value by 25%. By what percent must the value of that stock increase to reach its former value ? Correct Answer 30% (2 + 3) বা 5 বছরে সুদাসল = 300 এবং বছর পর সুদাসল = 240 3 জছরের সুদ = 60
Which of the following is the next number in the series : 1,1,2,4,3,9,4,16,5,.......... ?
Correct Answer:
A: 30
Explanation:
Which of the following is the next number in the series : 1,1,2,4,3,9,4,16,5,.......... ? Correct Answer 30 যেহেতু ত্রিভুজের বাহু তিনটি যথাক্রমে 5,12 এবং 13 তাই এটি অবশ্যই সমকোণী ত্রিভুজ। আমরা জানি, radicus of in - circle = 2(area of triangle)Sun of sides = 2×12×5×125 + 12 + 13 = 6030 = 2 minit
If 20% of 200 equals 5.5% of 'x', what is the value of 'x' ?
Correct Answer:
A: 2000
Explanation:
If 20% of 200 equals 5.5% of 'x', what is the value of 'x' ? Correct Answer 2000 Total দূরত্ব = (10 mile + 50 mile) = 60 mile City - তে 25 mile যায় 1 gallon - এ ∴ 10 " 1×1025 = 25 gallon 1×5040 = 54 gallon
If 4a+4b+4c+4d=112, what is the average of a,b,c and d ?
Correct Answer:
A: 28
Explanation:
If 4a+4b+4c+4d=112, what is the average of a,b,c and d ? Correct Answer 28 দহগ্রাম ছিটমহল লালমনিরহাটে অবস্থিত। দহগ্রাম ও আঙ্গরপোতা ছিটমহল বাংলাদেশের লালমনিরহাট জেলার পাটগ্রামে অবস্থিত। দহগ্রাম ইউনিয়ন উদ্বোধন করা হয় ১৯ আগস্ট ১৯৮৯। এর আয়তন ৩৫ বর্গমাইল।
The average of 10 integers is -16. If the sum of 6 of them is 100, what is the average of the other 4 ?
Correct Answer:
A: -50
Explanation:
The average of 10 integers is -16. If the sum of 6 of them is 100, what is the average of the other 4 ? Correct Answer -50 শর্তানুসারে n এর মান 50 থেকে ছোট কিন্তু 20 থেকে বড়। 5 দ্বারা ভাগ করলে 2 অবশিষ্ট থাকবে । সংখ্যাটি হতে পারে 22,27,32,37,42 কিংবা 47 7 দ্বারা ভাগ করলে অবশিষ্ট থাকবে '2'
Rahim's father has five sons. Four of them are named as Ten,Twenty,Thirty and Forty. What is the fifth son's name ?
Correct Answer:
A: Fifty
Explanation:
Rahim's father has five sons. Four of them are named as Ten,Twenty,Thirty and Forty. What is the fifth son's name ? Correct Answer Fifty জাতীয় সংসদের সভাপতি হলেন স্পিকার৷ জাতীয় সংসদের সভাপতি হলেন স্পিকার। তিনি সংসদের কার্যপ্রণালী নিয়ন্ত্রণ করেন। স্পিকারের অনুপস্থিতিতে সংসদের কার্য পরিচালনা করেন ডেপুটি স্পিকার।
Sumon attends his school from 9.00am to 3.00pm every day except Thursday. At home Sumon learns music only on Monday from 3.30 pm to 4.30 pm. On Tuesday he goes to swimming classes from 4.00 pm to 6.00 pm. He practices art from 4.00 pm to 6.00 pm only on Wednesdays. He remains in school after dismissal on Saturdays to participate in a 90 minute club program. The day(s) Sumon has free to go with the friends after 4.30 pm ...........................?
Correct Answer:
D: All of these three days
Explanation:
Sumon attends his school from 9.00am to 3.00pm every day except Thursday. At home Sumon learns music only on Monday from 3.30 pm to 4.30 pm. On Tuesday he goes to swimming classes from 4.00 pm to 6.00 pm. He practices art from 4.00 pm to 6.00 pm only on Wednesdays. He remains in school after dismissal on Saturdays to participate in a 90 minute club program. The day(s) Sumon has free to go with the friends after 4.30 pm ...........................? Correct Answer All of these three days UNESCO, OECD ( Organisation for Economic Cooperation and Development), ICOMOS ( International Council on Monuments and Sites) এগুলোর সদর দপ্তর প্যারিসে। LINESCO হলো জাতিসংঘ শিক্ষা, বিজ্ঞান ও সাংস্কৃতিক সংস্থা। এর পূর্ণরূপ হলো LInited Nations Educational, Scientific and Cultural Organization। এটি জাতিসংঘের বিশেষ সংস্থার মর্যাদা লাভ করে ১৪ ডিসেম্বর ১৯৪৬। এর সদর দপ্তর ফ্রান্সের প্যারিসে অবস্থিত।
The ratio of the present ages of two brothers is 1 : 2 and 5 years back, the ratio was 1 : 3. What will be the ratio of their ages after 5 years?
Correct Answer:
D: 3 : 5
If x:y=5:3, then (8x - 5y):(8x + 5y)=?
Correct Answer:
A: 5:11
Explanation:
If x:y=5:3, then (8x - 5y):(8x + 5y)=? Correct Answer 5:11 x : y = 5 : 3 x/y = 5/3 8x/5y = 5 × 8/3× 5 8x - 5y / 8x + 5y = 8 - 3 /8 + 3 ( 8x - 5y) : ( 8x - 5y) = 5 : 11
একটি সমদ্বিবাহু ত্রিভুজের সমান কোণদ্বয়ের একটি ৫০° হলে তৃতীয় পরিমাণ কত?
Correct Answer:
ঘ: ৮০°
Explanation:
একটি সমদ্বিবাহু ত্রিভুজের সমান কোণদ্বয়ের একটি ৫০° হলে তৃতীয় পরিমাণ কত? সঠিক উত্তর ৮০° যেহেতু সমদ্বিবাহু ত্রিভুজ তাই ২ কোণ সমান একটি ৫০ ডিগ্রী তাই আরেকটি কোণ ও ৫০ ডিগ্রী তাহলে ৩য় কোণ হবে ১৮০ - ১০০ = ৮০ ডিগ্রী
If the langth of a rectangle is increased by 20% and width is decreased by 20% what is the change in area of rectangle ?
Correct Answer:
B: decreased by 4%
Explanation:
If the langth of a rectangle is increased by 20% and width is decreased by 20% what is the change in area of rectangle ? Correct Answer decreased by 4% p + q + pq/100 = 20 - 20 - (20*20)/100 = - 4% decreas 4%
The dimensions of a box are 2,3 and 4 meters . the cost of painting the outer sides of the box at the rate of tk. 3 per square meter is ___
Correct Answer:
A: tk. 156
Explanation:
The dimensions of a box are 2,3 and 4 meters . the cost of painting the outer sides of the box at the rate of tk. 3 per square meter is ___ Correct Answer tk. 156 Area = 2(ab + bc + ca) = 2((2*3) + (3*4) + (4*2)) = 2(6 + 12 + 8) = 52 Total cost = 52*3 = 156 tk.
a median of a triangle divides it into two ___
Correct Answer:
B: triangles of equal area
Explanation:
a median of a triangle divides it into two ___ Correct Answer triangles of equal area ত্রিভুজের মধ্যমা ত্রিভুজকে দুটি সমান ক্ষেত্রফল বিশিষ্ট নতুন ত্রিভুজে বিভক্ত করে সুতরাং, এখানে triangles of equal area সঠিক
In a row in the theatre the seats are numbered consecutively from T1 to T50. Sumon is sitting in seat T17 and Sajib is sitting in seat T39. How many seats are there between us?
Correct Answer:
B: 21
Explanation:
In a row in the theatre the seats are numbered consecutively from T1 to T50. Sumon is sitting in seat T17 and Sajib is sitting in seat T39. How many seats are there between us? Correct Answer 21 প্রশ্নে একটু ভুল আছে। Q: In a row in the theatre the seats are numbered consecutively from T1 to T50. Sumon is sitting in seat T17 and Shajib is sitting and Shajib is sitting in seat T39. How many seats are there between them? Last - first - 1 = 39 - 17 - 1 = 21
A train leaves a station A at 7 am and reaches another station B at 11 am. Another train leas B at 8 am and reaches A at 11:30 am. The two trains cross one another at
Correct Answer:
D: 9:24 am
There are 2 numbers in the ratio of 4:5. If 4 is subtracted from both numbers the ration becomes 3:4 . What will be the ratio if 4 is added in the both numbers?
Correct Answer:
C: 5:6
Explanation:
There are 2 numbers in the ratio of 4:5. If 4 is subtracted from both numbers the ration becomes 3:4 . What will be the ratio if 4 is added in the both numbers? Correct Answer 5:6 Let Numbers are 4x and 5x According to the question, (4x - 4)/(5x - 4) = 3/4 or, 16x - 16 = 15x - 12 or, 16x - 15x = 12 + 16 or, x = 4 so the numbers are = 4*4 = 16 and 5*4 = 20 Adding 4 the numbers will be = 16 + 4 = 20 and 20 + 4 = 24 Required Ratio = 20:24 = 5:6 (divided by 4) Ans: 5:6
কোন সংখ্যার বর্গমূলের সাথে 10 যোগ করলে যোগফল ৪-এর বর্গ হবে?
Correct Answer:
গ: ৩৬
Explanation:
কোন সংখ্যার বর্গমূলের সাথে 10 যোগ করলে যোগফল ৪-এর বর্গ হবে? সঠিক উত্তর ৩৬ 42 = 1616-10 = 666 36ans
if x:y=5;3, then(8x-5y):(8x=5y)=?
Correct Answer:
A: 5:11
A motor cycle covers 40 km with a speed of 20 km/hr. Find the speed of the motor cycle for the next 40 km journy so that the average speed of the whole journey will be 30 km/hr?
Correct Answer:
C: 60
A car moves at the speed of 80 km/hr. What is the speed of the car in meters per second ?
Correct Answer:
Correct Answer:
Explanation:
A car moves at the speed of 80 km/hr. What is the speed of the car in meters per second ? Correct Answer Here, 1 hours = 3600 second and, 80 km = 8000 m so, It moves per 3600 sec is 8000 m " " " 1 " " = 8000/3600 m = 2.22 m ans: 2.22 m
একটি কুকুর একটি খরগোশকে ধরার জন্য তাড়া করে। কুকুর যে সময়ে ৪ লাফ দেয়,খরগোশ সে সময়ে ৫ লাফ দেয়। কিন্তু খরগোশ ৪ লাফে যতদূর যায় কুকুর ৩ লাফে ততদূর যায়। কুকুর ও খরগোশ এর গতিবেগের অনুপাত কত?
Correct Answer:
খ: ১৬:১৫
একটি বৃত্তের পরিধি ১৩২সে:মি: এবং ক্ষেত্রফল ১৩৮৬ সে:মি:, বৃত্তটির বৃহত্তম জ্যা এর দৈঘ্য কত?
Correct Answer:
ক: ৪২ সে:মি:
There are two numbers, 1 number is 12 more than the 2"d number. The average of the two numbers is 19. If 2 is added in both numbers, find the ratio of the numbers.
Correct Answer:
D: 9:5
a complets a job in 6 days,c in 20 days and d in 24 days if taka 8670 is to be devided among them, then b will get how much more than c?
Correct Answer:
A: 570
Sumon attends his school from 9.00am to 3.00pm every day except Thursday. At home Sumon learns music only on Monday from 3.30 pm to 4.30 pm. On Tuesday he goes to swimming classes from 4.00 pm to 6.00 pm. He practices art from 4.00 pm to 6.00 pm only on Wednesdays. He remains in school after dismissal on Saturdays to participate in a 90 minute club program. The most convenient afternoon for Sumon to stay in the library is ..................... ?
Correct Answer:
C: Thursday
Explanation:
Sumon attends his school from 9.00am to 3.00pm every day except Thursday. At home Sumon learns music only on Monday from 3.30 pm to 4.30 pm. On Tuesday he goes to swimming classes from 4.00 pm to 6.00 pm. He practices art from 4.00 pm to 6.00 pm only on Wednesdays. He remains in school after dismissal on Saturdays to participate in a 90 minute club program. The most convenient afternoon for Sumon to stay in the library is ..................... ? Correct Answer Thursday United Nations Environment Programme ৫ই জুন ১৯৭২ সালে প্রতিষ্ঠিত হয়। এর সদর দপ্তর হয় - কেনিয়ার নাইরোবিতে। এরপর ১৯৭৪ সাল হতে প্রতিবছর ৫ জুন বিশ্ব পরিবেশ দিবস পালন হতে থাকে।
if(x+3)^2=225,which of the following can be the value of x-1 ?
Correct Answer:
A: 13
logax=1, log, y=2 ,logaz=3,loga(x3y2z)=?
Correct Answer:
B: 4
Explanation:
logax=1, log, y=2 ,logaz=3,loga(x3y2z)=? Correct Answer 4 loga(x3y2z) = loga(x3y2) - logaz [.; logaMN = logaM - logaN] = logax3 + logay2 - logaZ = 3×1 + 2×2 - 3 = 4
261 টি আম তিন ভাইয়ের মধ্যে 13:15:19অনুপাতে ভাগ করে দিলে প্রথম ভাই কতটি আম পাবে?
Correct Answer:
ঘ: 135
Explanation:
261 টি আম তিন ভাইয়ের মধ্যে 13:15:19অনুপাতে ভাগ করে দিলে প্রথম ভাই কতটি আম পাবে? সঠিক উত্তর 135 ভাইদের মধ্যে আমগুলোর অনুপাত = 13:15:19 = (13×45):(15×45):(19×45) = 15:9:5 অনুপাতের রাশিগুলোর যোগফল = (15 + 9 + 5) = 29 অতএব প্রথম ভাই আম পাবে (261এর 15/29) টি = 135 টি
উৎকেন্দ্রিকতাকে e দ্বারা সূচিত করা হলে সঞ্চারপথ হয় উপবৃত্ত নিচের কোন শর্তাধীনে?
Correct Answer:
Correct Answer:
3x+4x+1=2,x=?
Correct Answer:
B: 3
Explanation:
3x+4x+1=2,x=? Correct Answer 3 3x + 4x + 1 = 2 = >3x + 3 + 4xx(x + 1) = 2 = >7x + 3 = 2(x2 + x) = > 2x2 - 7x + 2x - 3 = 0 = >2x2 - 5x - 3 = 0 = > 2x2 - 6x + x - 3 = 0 2x (x - 3) + 1 (x - 3) = 0 (x - 3) (2x + 1) = 0 = > (x - 3) = 0 [(2x + 1) = 0 .'. x = 3
3/4th of square were taken to form shape A and the rest was made to form shape B. Shape A was divided into four equal squares (Shape C), what will be the ratio of the one shape C to one shape B.
Correct Answer:
D: 3:4
all possible three num areformed by 1 ,2 ,3 ,.if one number is chosen randomly; the possibility that it would be divisible by 111 is
Correct Answer:
Correct Answer:
Which number logically follows the sequence ? 4 6 9 6 14 6 ........
Correct Answer:
C: 19
Explanation:
Which number logically follows the sequence ? 4 6 9 6 14 6 ........ Correct Answer 19 4+6=10 10–1=9, 9+6=15 15–1=14, 14+6=20 20–1=19. That's the sequence. The next number is 19.
1x=1-x হলে 1x+x2 এর মান কত হবে?
Correct Answer:
Correct Answer:
বাস্তব সংখ্যায় |2x-3|≤| অসমতাটির সমাধান___
Correct Answer:
গ: 1≤x≤2
Explanation:
বাস্তব সংখ্যায় |2x-3|≤| অসমতাটির সমাধান___ সঠিক উত্তর 1≤x≤2 |2x - 3|≤| এর পরিবর্তে |2x - 3|≤1 হলে উত্তর হবে (গ) 1≤x≤2 |2x - 3|≤1 (2x - 3) অঋণাত্বক হলে প্রদত্ত অসমতা দাঁড়ায় |2x - 3|≤1 = >2x - 3 + 3≤1 + 3 = > 2x≤4 = >2x2≥22.'.x≤2আবার, (2x - 3) ঋণাত্বক হলে প্রদত্ত অসমতা দাঁড়ায় - (2x - 3)≤1 = > 2x - 3≥ - 1[ - 1 দ্বারা গুণ করে] = > 2x - 3 + 3 ≥ - 1 + 3 = >2x≥2 = >2x2≥22 = >x≥1 ∴ নির্ণেয় অসমতা 1≤x≤2
Mr.Nazim was planning on depositing a certain amount of money each month into a college fund for his children. He then decided not to make any contributions during June and July. To make the same annual contribution that he had originally planned, by what percent should he increase his monthly deposits?
Correct Answer:
A: 1623%
Explanation:
Mr.Nazim was planning on depositing a certain amount of money each month into a college fund for his children. He then decided not to make any contributions during June and July. To make the same annual contribution that he had originally planned, by what percent should he increase his monthly deposits? Correct Answer 1623% Assume we conteributes 100 Tk per month, for an annual total of 1200 Tk.Seeing that he missed two months : 1200 - 1000 = 200 1 have2001200×100 = 1623%
2x-3y2x+3y=17 হলে x:y = ?
Correct Answer:
C: 2:1
abc=120 হলে , a এর মান কোনটি হতে পারে না?
Correct Answer:
Correct Answer:
যদি (25)2x+3=53x+6 হয়, তবে x - এর মান কত?
Correct Answer:
Correct Answer:
যদি tanθ=1 হয়, তবে sinθ-cos(-θ) এর মান কত?
Correct Answer:
Correct Answer:
সমবাহু ত্রিভুজের দৈর্ঘ্য যদি 'a' হয় তবে ত্রিভুজটির ক্ষেত্রফল কত?
Correct Answer:
খ: 34a2
2y+3y3x+2y=56 হলে , x:y= কত?
Correct Answer:
D: 8:3
bc(a-b)(a-c) +ca(b-c)(b-a)+ab(c-a)(c-b)=?
Correct Answer:
Correct Answer:
x3+1x=3হলে, x3+1x3-এর মান __
Correct Answer:
Correct Answer:
Explanation:
x3+1x=3হলে, x3+1x3-এর মান __ Correct Answer x3 + 1x3 = (x + 1x3)3 - 3x.1x(x + 1x) = (3)3 - 33 = 33 - 33 = 0
In a room there are six Bengali, twelve engineers and fifteen football players. Only one of them was a bengali Engineer who played Football. Two were Bengali Engineers but did not play football and two were Bengali football players and were not engineers. If there were 24 people in the room, and at least one of them were Bengali, engineer or a football player, how many were engineers and played football but not bngali?
Correct Answer:
C: 6
If x=-1,then -(x4+x3+x2+x)=
Correct Answer:
Correct Answer: