3481 . 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-

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).

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3482 . 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?

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

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3483 . 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.

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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.)

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3485 . Three coins are tossed. Find the probability of exactly 2 heads-

A. $\frac{3}{8}$
B. $\frac{1}{2}$
C. $\frac{1}{8}$
D. $n o n e$

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Answer: Option A

Explanation:

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

3486 . Three dice are thrown together. Find the probability of getting a total of at least 6 ?

A. $\frac{103}{108}$
B. $\frac{103}{208}$
C. $\frac{103}{216}$
D. $\frac{96}{103}$

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Answer: Option A

Explanation:

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Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 14.5
B. 75.69
C. 145
D. 210.25

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Answer: Option A

Explanation:

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3488 . Three fourth of a number is 60 more than its one-third. The number is:

A. 84
B. 108
C. 144
D. None of these

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Answer: Option C

Explanation:

Hints: Let the number is x

So, 3x/4 = 1x/3 + 60

3x/4 - x/3 = 60

( 9x - 4x) /12 = 60

5x = 720

x = 144

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পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

A. 3/20
B. 4/15
C. 2/15
D. 1/5

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Answer: Option A

Explanation:

Let the capacity of each truck and the reservoir be T and R respectively.

Total capacity of five trucks = 5T

According to the question, 5T = 3/4 of R

or, T = 3/4 x R / 5 = (3/20) R

So, each truck received 3/20 of the reservoir.

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3490 . Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is-

A. 1/9
B. 5/9
C. 8/9
D. 4/9

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Answer: Option A

Explanation:

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Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. Tk.1500
B. Tk.1950
C. Tk.650
D. Tk.850

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Answer: Option D

Explanation:

Total contribution = 3 x 8000 = 24000 TK

Cost of computer = 19500 + 10% of 19500 = 19500 + 1950 = 21450 TK.

Excess contribution = 24000 - 21450 = 2550 TK.

Refund to each = 2550/3 = 850 TK.

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3492 . Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?

A. 81
B. 81.5
C. 82
D. 84.5
E. None of these

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Answer: Option B

Explanation:

According to question,
(i) (83x + 76y)/( x + y )=79
⇒ x = 43y
(ii) (76y + 85z)/(y + z) = 81
z = 45y
Average of all 3 = (83x + 76y + 85z)/(x + y + z)
=81.5

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Bangladesh Bank - Assistant Director - 2009

A. 6,4and 15
B. 9, 11 and 14
C. 8, 12 and 15
D. 10, 8 and 17

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Answer: Option C

Explanation:

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3494 . Three partners A, B, C start a business. Twice A's capital is equal to thrice B's capital and B's capital is four times C's capital. Out of a total profit of TK. 16,500 at the end of the year, B's share is:

A. Tk. 4000
B. Tk. 6000
C. Tk. 7500
D. Tk. 6600

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Answer: Option B

Explanation:

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Bangladesh Bank - Assistant Director - 2014

A. 5 : 7 : 8
B. 20 : 49 : 64
C. 38 : 28 : 21
D. 18 : 28 : 56

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Answer: Option B

Explanation:

Hints: let the investment Take was x for 14 months, y for 8 months and z for 7 months

14x : 8y : 7z = 5: 7 : 8

so, 14x/8y = 5/7

y = 49x/20

and 14x/7z = 5/8

z = 16x / 5

x : y : z = x : 49x/20 : 16x /5 = 20 : 49 : 64

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3481 . 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-

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3482 . 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?

3483 . 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?

3484 . 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?

3487 . Three-fifth the square of a certain number is 126.15. What is the number?

3488 . Three fourth of a number is 60 more than its one-third. The number is:

3489 . Three-fourth petrol of a reservoir is used to fill the petrol tanks of five trucks having the same storege capacity; What part of the total capacity of the petrol reservoir did each truck receive?

3490 . Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is-

3491 . Three individuals contributed Tk.8000 each toward the purchase of a computer. If they bought the computer on sale for Tk.19500 plus 10% sales tax, how much money should be refunded to each individual?

3493 . Three number are added in pairs , the sums so obtained are 20,27 and 23. What are those three numbers?

3494 . Three partners A, B, C start a business. Twice A's capital is equal to thrice B's capital and B's capital is four times C's capital. Out of a total profit of TK. 16,500 at the end of the year, B's share is:

3495 . Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnership for 14 months, 8 months and 7 months respectively. What was the ration of their investments?

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