Explanation:

X is west of Y and Y is north of Z. m is south of X. Which directin is M to Z? Correct Answer West প্রশ্নে প্রদত্ত দিকনির্দেশনাগুলো ভিত্তি করে নিচে একটি চিত্র তৈরি করি। চিত্রে দেখা যাচ্ছে এর অবস্থান এর পশ্চিম (west) - এ। সুতরাং সঠিক উত্তর b

Explanation:

How many prime numbers are there between 56 and 100/ Correct Answer 9 56 থেকে 100 পর্যন্ত মৌলিক সংখ্যা 9 টি । সংখ্যাগুলো হলো : 59, 61, 67, 71, 73, 79, 83, 89, 97 ।

Explanation:

All birds have beaks , and sparrows are birds, so all sparrows must have beaks. Correct Answer Syllogism This is a syllogism (সি - ল - জিযম = দুটি বিবৃতি থেকে সিদ্ধান্ত বা অনুমান। যেমন - সব মানুষ মরণশীল। সক্রেটিস একজন মানুষ। এজন্য সক্রেটিস মরণশীল। Syllogisms have three parts: major premise, minor premise, conclusion, Syllogism uses deductive reasoning, reducing general information (all birds have beaks, all sparrows are birds) to infer a more specific conclusion (all sparrows have beaks).

Explanation:

The decimal 0.1 is how many times greater than the decimal (0.001)3? Correct Answer 108 0.001 সংখ্যাটিতে দশমিকের পরে digit আছে 3 টি সুতরাং (0.001)3 সংখ্যাটিতে দশমিকের পরে digit হবে 3 × 3 = 9 টি, অর্থাৎ 0.000000001 সুতরাং 0.1 সংখ্যাটি, 0.000000001 সংখ্যাটির চেয়ে বড়। = 0 - 10.000000001 গুন বড় = 1000000001 = 1()8

Explanation:

What id the value of 0.4 X 0.04 X 0.004 X 40 ? Correct Answer 0.00256 <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>0</mn><mo>.</mo><mn>4</mn><mo>×</mo><mn>0</mn><mo>.</mo><mn>04</mn><mo>×</mo><mn>0</mn><mo>.</mo><mn>004</mn><mo>×</mo><mn>40</mn></math><math xmlns = "http://www.w3.org/1998/Math/MathML"><mo> = </mo><mfrac><mn>4</mn><mn>10</mn></mfrac><mo>×</mo><mfrac><mn>4</mn><mn>100</mn></mfrac><mo>×</mo><mfrac><mn>4</mn><mn>1000</mn></mfrac><mo>×</mo><mn>40</mn><mo> = </mo><mfrac><mn>256</mn><mn>100000</mn></mfrac><mo> = </mo><mn>0</mn><mo>.</mo><mn>00256</mn></math>

Explanation:

Of the following ,which is the largest? Correct Answer 126250 1/2 = 0.50 7/15 = 0.47 49/100 = 0.49 126/250 = 0.504

Explanation:

How many times in a day, are hands of a clock in straight line opposite in direction? Correct Answer 22 যখন ৬ টা বাজে তখন মিনিটের কাঁটা 12টা বরাবর এবং ঘণ্টার কাঁটা 6টা বরাবর আসে। এছাড়া আর কখোনই এরকমটা হয় না। যখন 12 টা বাজে তখন ঘণ্টা ও মিনিটের কাঁটা একে অপরের উপরে থাকে শূন্য ডিগ্রিতে। তারপর পরের 12 ঘন্টার 11 বার সরলরেখায় আসে। তাহলে 24 ঘন্টায় এমনটি হয় 22 বার।

Explanation:

Which of the following is divisible by 2 and 7? Correct Answer 350 নিচের ঐ সংখ্যাটিই 2 ও 7 দ্বারা বিভাজ্য হবে যে সংখ্যাটি 2 এবং 7 এর ল.সা. গু = 14 দ্বারা বিভাজ্য বা 14 এর গুণিতক। এখানে <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>14</mn><mo>×</mo><mn>25</mn><mo> = </mo><mn>350</mn></math> । সুতরাং 350 সংখ্যাটি 2 এবং 7 দ্বারা বিভাজ্য।

Explanation:

Determine the value of (5-2)2. Correct Answer 1/625 (5 - 2)2 =  5 - 4  =  154 =  1625

Explanation:

An employer pays 3 workers X, Y and Z a total of Tk. 36600 a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid . How much does X make a week? Correct Answer 12000 X = 125% of y = 125y/100 = 5y/4 Or, y = 4x/5 Again, X = 80% of z = 80z/100 = 4z/5 Or, z = 5x/4 X:y:z = x:4x/5:5x/4 = 20:16:25 Sum of ratio = 20 + 16 + 25 = 61   So, x makes a week = 20/61 × 36600 = 20×600 = 12000 tk. (ans)

Explanation:

If x +5y=16 and x=-3y, then y=? Correct Answer 8 x + 5y = 15 ……..(i)x = - 3y …………(ii)<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>∴</mo><mo>(</mo><mi>i</mi><mo>)</mo><mo>⇒</mo><mo> - </mo><mn>3</mn><mi>y</mi><mo> + </mo><mn>5</mn><mi>y</mi><mo> = </mo><mn>16</mn></math><math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>⇒</mo><mn>2</mn><mi>y</mi><mo> </mo><mo> = </mo><mo> </mo><mn>16</mn></math><math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>⇒</mo><mi>y</mi><mo> = </mo><mn>8</mn></math>

Explanation:

If the salary of an emplyees is reduced by 10 percent for has late attendance and them increased by 10 percent on a pardon, how much does he lose? Correct Answer 1% অভিজ্ঞ এবং ভালোমন্দ বিচার করতে পারে এমন ব্যক্তিকে বলে Connoisseur(সমঝদার)। Illusionist - জাদুকর। Patriot - দেশপ্রেমিক। Amateur - অপেশাদার লোক।

Explanation:

The length of a rectangle is twice its breadth . If its length is decreased y 5 cm and breadth is increased by 5 cm , the area of the rectangle is increased by 75 sq. cm . Find the length of the rectangle. Correct Answer Try your self Correct answer is 40 cm. Let, breadth x cm & length 2x cm ∴ Area = 2x2 length decreased by 5 cm 2x2 length = 2x - 5 breadth increased by 5 cm 2x2 breadth = x + 5 Area increased by 75 cm2 ∴(x + 5)2x - 5 - 2x2 = 75 ⇒ 2x2  - 5x + 10x - 25 - 2x2 = 75 ⇒ 5x - 25 = 75 ⇒ 5x = 1000 ∴ x = 20 breadth = 20 cm length = 20×2 cm = 40 cm. Note : Answer is not present in options.

Explanation:

If a + 2b = 6 and ab = 4 what is the value of 2a+1b ? Correct Answer 3/2 a + 2b = 6 এবং ab = 4; সুতরাং 2a + 1b =  2b + aab = 64 = 32

Explanation:

Find the largest number of apples not exceeding 1000 which can be divided among 6,15,20, or 24 boys? Correct Answer 960 6, 15, 20, 24 এর ল. সা . গু = 120সুতরাং 1000 আপেলের মধ্যে সর্বোচ্চ সংখ্যাক আপেল যা 120 জনের মধ্যে সমানভাবে ভাগ করে দেয়া যাবে সে সংখ্যাটি হবে 120 এর গুণিতক।এখানে, <math xmlns = "http://www.w3.org/1998/Math/MathML"><mn>120</mn><mo>×</mo><mn>8</mn><mo> = </mo><mn>960</mn></math>সুতরাং 1000 এর মধ্যে সর্বোচ্চ 960 টি আপেল সবার মধ্যে সমানভাবে ভাগ করে দেয়া যাবে।

Explanation:

The sum of tree consecutive even integers is equal to 4 times the smallest. What is the smallest integer? Correct Answer 6 ধরি, ছোট জোড় সংখ্যাটি হলো x<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>∴</mo><mi>x</mi><mo> + </mo><mi>x</mi><mo> + </mo><mn>2</mn><mo> + </mo><mi>x</mi><mo> + </mo><mn>4</mn><mo> = </mo><mn>4</mn><mi>x</mi></math><math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> 3x + 6 = 4x<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> x = 6

Explanation:

If it takes 4 hours to dig a hole by 50 workers, how long should it take to dig the same hole by 30 workers? Correct Answer 6 hours 40 minutes 4 ঘন্টা = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mn>4</mn><mo>×</mo><mn>60</mn></mrow></mfenced></math> মিনিট মিনিট = 240 মিনিট 50 জন লোক একটি গর্ত খনন করে = 240 মিনিটে<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> " " " " " " " = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mn>240</mn><mo>×</mo><mn>50</mn></mrow></mfenced></math> ''<math xmlns = "http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> 30 " " " " " " " " = <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>240</mn><mo>×</mo><mn>50</mn></mrow><mn>30</mn></mfrac><mo> = </mo><mn>400</mn></math> মিনিট বা 6 ঘন্টা 40 মিনিট

Explanation:

In a class of 78 students 41 are taking 22 are taking German of the students taking french or German, 9 are taking courses. how many student are not cancelled is either course? Correct Answer 24 টাকা নিয়ে ঝগড়া করো না। টাকা পাঁচ জনের মধ্যে ভাগ করে নাও। দুয়ের মধ্যে বোঝালে between আর দুয়ের অধিকের মধ্যে বোঝালে among বসবে। সুতরাং missing word টি হলো among. Share it among the five of you হলে বাক্যটি correct হতো।

Explanation:

If x and y are non-negative simplify (81x17y18)14 Correct Answer 3x174y92 (81x17y18)14 = (34)14x174y184 = 344x174y92 = 3x174y92

Explanation:

A courtyard 25 m long and 16 m broad is to be paved with bricks of dimension 20 cm by 10 cm . The total number of bricks required is : Correct Answer 20000 Number of bricks = Area of courtyardArea of 1 brick = 2500×160020×10 = 20,000

Explanation:

P=52  then the value of P2 is - Correct Answer 27+102 বাক্যে কোনো word missing নেই । কোনো word যোগ ছাড়াই বাক্যটি অর্থ সম্পূর্ণ করতে সক্ষম। সুতরা সঠিক উত্তর হবে None।

Explanation:

230+230+230+230=? Correct Answer 232 230 + 230 + 230 + 230 = 22.230 = 232

Explanation:

The length of a rectangular plot is 60% more than its breadth . If the difference between the length and the breadth of that rectangle is 24 cm. what is the area of that rectangle ? Correct Answer 2560 sq.cm Let the breadth of the rectrangle be x cm then length = x + 60% of x = x + 0.6x = 1.6x cm Given difference between length and breadth is 24 cm hence 1.6x - x = 24 ⇒ x = 40 cm length = 1.6×40 = 64 cm Area = length×breath 64×40 = 2560 s.cm.

Explanation:

(2x-1)2÷x-5 is equal to --- Correct Answer 4x3 <math xmlns = "http://www.w3.org/1998/Math/MathML"><msup><mi>x</mi><mn>2</mn></msup><mo> </mo><mo> + </mo><msup><mi>x</mi><mn>2</mn></msup><mo> </mo><mo> = </mo><mo> </mo><msup><mn>16</mn><mn>2</mn></msup><mspace linebreak = "newline"/><mo>⇒</mo><mn>2</mn><msup><mi>x</mi><mn>2</mn></msup><mo> </mo><mo> = </mo><mn>16</mn><mo>×</mo><mn>16</mn><mspace linebreak = "newline"/><mo>⇒</mo><msup><mi>x</mi><mn>2</mn></msup><mo> </mo><mo> = </mo><mfrac><mrow><mn>16</mn><mo>×</mo><mn>16</mn></mrow><mn>2</mn></mfrac><mo> = </mo><mo> </mo><mn>8</mn><mo>×</mo><mn>16</mn><mspace linebreak = "newline"/><mo>⇒</mo><msup><mi>x</mi><mn>2</mn></msup><mo> </mo><mo> = </mo><mn>4</mn><mo>×</mo><mn>4</mn><mo>×</mo><mn>4</mn><mo>×</mo><mn>2</mn><mspace linebreak = "newline"/><mo>⇒</mo><mi>x</mi><mo> = </mo><msqrt><msup><mn>4</mn><mn>2</mn></msup></msqrt><mo> + </mo><msup><mn>2</mn><mn>2</mn></msup><mo> + </mo><mn>2</mn><mo> </mo><mo> = </mo><mn>8</mn><msqrt><mn>2</mn></msqrt></math>

Explanation:

Find the value of n if 27n-13=243 Correct Answer 2/3 Suspect somebody of something (কাউকে কোনো কিছুর জন্য সন্দেহ করা)।সুতরাং having - এর পূর্বে of বসবে। লোকটি ইচ্ছকৃতভাবে কারখানায় আগুন লাগিয়েছে বলে পুলিশ সন্দেহ করল।

Explanation:

A tradesman sold and article at a loss of 20% . If the selling price had been increased by Tk. 100 . there would have been a gain of 5% . what was the cost price of the article ? Correct Answer TK. 400 Let cost price be Tk.x then, (105% of x) - (80% of x ) = 100 ⇒25x100 = 100 ⇒x4 = 100 ∴ x = 400 So, cost price = Tk. 400

Explanation:

Which one of the following is the least value of 2x+x26x? Correct Answer 2+x6 2x + x26x = x(2 + x)6x = 2 + x6

Explanation:

If m+m-5=5, what is the value of m ? Correct Answer 9 m = 9 বসালে, m + m - 5 = 9 + 9 - 5 = 3 + 2 = 5

Explanation:

There are 120 engineers and technocians working in a project in a project. If the ratio of enginerrs to technicians is 3 to 5, how many technicians are working in the project? Correct Answer 75 ধরি, ইঞ্জিনিয়ার সংখ্যা = 3xটেকনেশিয়ান সংখ্যা = 5x3x + 5x = 1208x = 120x = 120/8x = 15টেকনেশিয়ান সংখ্যা = (15x5) জন = 75 জন।

Explanation:

If a+2b=6 and ab =4, What is 2a+1b? Correct Answer 3/2 দেওয়া আছে,<math xmlns = "http://www.w3.org/1998/Math/MathML"><mi>P</mi><mo> = </mo><mo>(</mo><mfrac><mn>15</mn><mn>18</mn></mfrac><mo> + </mo><mfrac><mn>5</mn><mn>16</mn></mfrac><mo> - </mo><mfrac><mn>20</mn><mn>24</mn></mfrac><mo>)</mo><mspace linebreak = "newline"/><mo> = </mo><mo>(</mo><mfrac><mn>5</mn><mn>6</mn></mfrac><mo> + </mo><mfrac><mn>5</mn><mn>16</mn></mfrac><mo> - </mo><mfrac><mn>5</mn><mn>6</mn></mfrac><mo>)</mo><mo> </mo><mo> = </mo><mfrac><mn>5</mn><mn>16</mn></mfrac></math>

Explanation:

If the difference between the circumference and diameter of a circle is 60 cm then the radius of the circle is____ Correct Answer 14cm <math xmlns = "http://www.w3.org/1998/Math/MathML"><mfrac><mn>1</mn><mn>5</mn></mfrac><mo> - </mo><mn>2</mn><mo> = </mo><mfrac><mrow><mn>1</mn><mo> - </mo><mn>10</mn></mrow><mn>5</mn></mfrac><mo> = </mo><mfrac><mrow><mo> - </mo><mn>9</mn></mrow><mn>5</mn></mfrac><mspace linebreak = "newline"/><mfrac><mn>1</mn><mn>3</mn></mfrac><mo> - </mo><mn>2</mn><mo> = </mo><mfrac><mrow><mn>1</mn><mo> - </mo><mn>6</mn></mrow><mn>3</mn></mfrac></math>

Explanation:

Peter purchased a machine for Tk. 80,000 and spent tk. 5000 on repair and Tk. 1000 on transport and sold it with 25% profit . At what price did he sell the machine? Correct Answer Tk. 1,07, 500 Cost Price = Tk. (80000 + 5000 + 1000) = Tk. 86000 Profit = 25% Sells price = 125% of Tk. 86000 = Tk. (125/100×86000) = Tk. 107500

Explanation:

If one root the equation x2+3x-k=0 is 2, what is the value of k ? Correct Answer 10 x = 2 হলে, 22 + 3×2 - k = 0⇒4 + 6 - k = 0⇒10 - k = 0 সুতরাং k = 10

Explanation:

A circle has an area of 45cm2. What is the radious of the circle? Correct Answer 3.78 cm দেওয়া আছে, πr2 = 45r2  =  453.14r2 = 14.33r =  14.33 = 3.78

Explanation:

when a plot is sold for TK. 18,700 , the owner loses 15% . At what price must the plot be sold in order to gain 15% ? Correct Answer TK. 25, 300 85 : 18700 = 115 : x ⇒x = 18700×11585 = 25300 Hence S.p. = TK. 25300

Explanation:

A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 percent large than the original. by what percentage has the area of logo increase? Correct Answer 125 ক্ষেত্রফল বৃদ্ধির পরিমাণ = (50 + 50 + 50×50100)% = 125%

Explanation:

The percentage profit earned by selling an article for TK. 1920 is equal to the percentage loss incurred by selling the same article for TK. 1280 .At what price should the article be sold to make 25% profit? Correct Answer TK. 2000 Let, Cost Price be Tk. X Then, 1920 - xx×100 = x - 1280x×10 ⇒ 1920 - x = x - 1280 ⇒2x = 3200 ⇒ x = 1600 ∴ Required S.P. = 125% of Tk. 1600 = Tk. 125100×1600 = Tk. 2000

Explanation:

A can complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km / hr and second half at the rate of 24 km .hr. Find the total journey in km. Correct Answer 224 km Let the distance be x So,12x21 + 12x24 = 10⇒x21 + x24 = 20⇒15x  =  168×20⇒x  = 168×2015∴ 224km

Explanation:

How many times does the digit 4 come to write numbers from 10 to 100? Correct Answer 19 40 থেকে 49 পর্যন্ত 4 আসে 11 বার। বাকি 8 টি দশকের মধ্যে 8 বার আসে। মোট = 11 + 8 = 19 বার।

Explanation:

A person makes a profit of 10% on 25% of the quantity and a loss of 20% on the rest what is the percentage gain or loss on the whole? Correct Answer 12.5% ধরি, Quantity 100% প্রথম 25% জিনিসের উপর 10% লাভ = 25 × 10% = 2.5 এবং বাকি 75% জিনিসের উপর loss 20%। অর্থাৎ 75 × 20% = 15 সুতরাং সার্বিক loss হয় (15.2.5) = 12.5%।