3106 . There are tow examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same . If 20 candidates are sent from B to A, then the number of students in a is double the number of students in B. what is the number of students in room A?

A. 20
B. 80
C. 100
D. 200
E. None of these

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Answer: Option C

Explanation:

Let, the no of students in room A and B be x and y

Then, x - 10 = y + 10

and, x + 20 = 2 ( y - 20)

Solving, x = 100, y = 80

3107 . There are two numbers such that the sum of twice the first and thrice the second is 39. While the sum of thrice first and twice the second is 36. The larger of the two is :

A. 6
B. 8
C. 9
D. 12

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Answer: Option C

Explanation:

ধরি, সংখ্যা দুটি x ও y

2x + 3y = 39....... (1)

3x + 2y = 36........... (2)

(1) × 3 - (2) × 2

6x + 9y = 117

6x + 4y = 72

5y = 45

y = 9

x = 39 - 27 /2 = 6

বড় সংখ্যাটি 9

3108 . There are two stations of length 162 meters and 120 meters respectively . A train takes 15 seconds to pass first station and 18 seconds to pass another station . Determine the length of the train ?

A. 90 m
B. 70 m
C. 100 m
D. 95 m

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Answer: Option A

Explanation:

3109 . There is 60% increase in an amount in 6 years at simple interest. What will be i the compound interest of Tk. 12,000 after 3 years at the same rate?

A. Tk. 2160
B. Tk. 3120
C. Tk. 3972
D. Tk. 6240

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Answer: Option C

Explanation:

সমন্বিত পাঁচ ব্যাংক || অফিসার ক্যাশ - 06.11.2021

A. 480
B. 120
C. 1200
D. 4800
E. None of these

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Answer: Option E

Explanation:

(64 ×44) - (60 ×40) = 416

Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 240 ways
B. 480 ways
C. 120 ways
D. None of these

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Answer: Option A

Explanation:

জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

A. 56 days
B. 50 days
C. 48 days
D. 54 days

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Answer: Option D

Explanation:

Work equivalence method:
1200 × 45 = 1000 × x
Hence, x = 54 days
Variation Method:
After 15 days 200 soldiers left.
Soldiers Food for days
1200 ↓ 45
1000 ↑ x (let)
Arrows show the opposite variation to each other
1200/1000 = x/45
Or, x = (1200 × 45)/1000
= 54 days.

সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. 25
B. 35
C. 50
D. 65

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Answer: Option D

Explanation:

Let, Boys = 100

Girls = 200

200 × 30% + 100 × 45%

= 60 + 45

= 105

300 - 105 /300 × 100%

= 195 / 300 × 100%

= 65%

3114 . There would be 10% loss if a toy is sold at Tk.10.80 per price. At what price should it be sold to earn a profit of 20%?

A. 14.40
B. 16.50
C. 12
D. 12.96

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Answer: Option A

Explanation:

3115 . Think a number and then double the number. Then add 8 and multiply the result by 6. Now divide the result by 12, then subtract the number you first thought out. What u the final result?

A. 4
B. 6
C. 10
D. 14

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Answer: Option A

Explanation:

3116 . Three coins are tossed. Find the probability of exactly 2 heads-

A. $\frac{8}{3}$
B. $\frac{1}{2}$
C. $\frac{1}{8}$
D. None

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Answer: Option A

Explanation:

সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (10-11-2023)

A. 38
B. 36
C. 32
D. Cannot be determined

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Answer: Option D

Explanation:

total number is 32,

1st boy will get 17(half +1= 16 + 1),2nd boy 5 (rest is 15 he will get 1/3)3rd boy 10 (twice of 2nd boy's 5).

বাংলাদেশ ব্যাংক || সহকারী পরিচালক (AD) (20-10-2023)

A. 57
B. 15
C. 76
D. 38

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Answer: Option A

Explanation:

Smaller ratio 3 = 9

So, Smaller ratio 1 = 9/3 = 3

Now,

Highest ratio 19 = 19×3 = 57

3119 . Three boys have marbles in the ratio of 19: 5: 3 If the boy with the least number has 9 marbles, how many marbles does the boy with the greatest number have?

A. 57
B. 33
C. 27
D. 81

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Answer: Option A

Explanation:

Let's call the number of marbles each boy has as follows:

Boy A has 19x marbles. Boy B has 5x marbles. Boy C has 3x marbles.

We are given that Boy C has the least number of marbles, which is 9. So, we can set up the equation:

3x = 9

Now, let's solve for x:

3x = 9 x = 9 / 3 x = 3

Now that we know the value of x, we can find the number of marbles Boy A has:

Boy A has 19x = 19 * 3 = 57 marbles.

So, the boy with the greatest number of marbles is Boy A, and he has 57 marbles.

Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

A. Tk. 26,000
B. Tk. 30,000
C. Tk. 52,000
D. Tk. 60,000

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Answer: Option B

Explanation:

Individual profit of Q,R and S are 2x, 5x, 8x

Sum of total profit = 2x + 5x + 8x = 15x

now, 2x = 4000tk

x = 4000/2 = 2000tk

15x = (2000*15) tk

= 30,000tk (Ans.)

3106 . There are tow examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same . If 20 candidates are sent from B to A, then the number of students in a is double the number of students in B. what is the number of students in room A?

3107 . There are two numbers such that the sum of twice the first and thrice the second is 39. While the sum of thrice first and twice the second is 36. The larger of the two is :

3108 . There are two stations of length 162 meters and 120 meters respectively . A train takes 15 seconds to pass first station and 18 seconds to pass another station . Determine the length of the train ?

3109 . There is 60% increase in an amount in 6 years at simple interest. What will be i the compound interest of Tk. 12,000 after 3 years at the same rate?

3110 . There is a 2 meter wide road surrounding a pond which is 60 meters long and 40 wide. The area covered by the road is:

3111 . There is a group of 5 men , 6 women and 8 children . 1 man, 1 woman and one child are going to be selected to play a game. In how many ways can the selection be done?

3112 . There is provision of food in fort for 1200 soldiers for 60 days .After 15 days . 200 soldiers leave the fort .Remaining food will last for how many days?

3113 . There were twice as many girls as boys in a class. If 30% of the girls and 45% of the boys have already handed over their reports, what percent of the students have not yet done so?

3114 . There would be 10% loss if a toy is sold at Tk.10.80 per price. At what price should it be sold to earn a profit of 20%?

3115 . Think a number and then double the number. Then add 8 and multiply the result by 6. Now divide the result by 12, then subtract the number you first thought out. What u the final result?

3117 . Three boys agree to divide a bag of marbles in the following manner. The first boy takes one more than half the marbles. The second takes a third of the number remaining. The third boy finds that he is left with twice as many marbles as the second boy. The original number of marbles is-

3118 . Three boys have marbles in the ratio of 19 : 5 : 3. If the boy with the least number has 9 marbles, how many marbles does the boy with the highest number have?

3119 . Three boys have marbles in the ratio of 19: 5: 3 If the boy with the least number has 9 marbles, how many marbles does the boy with the greatest number have?

3120 . Three business partners Q, R, and S, agree to divide their total profit for a certain year in the ratios 2 : 5 : 8, respectively. If Q's share was Tk. 4000, what was the total profit of the business partners for the year?

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