3061 . The compound interest on Tk. 2800 for 18 months at 10% p.a. is

A. Tk. 441.35
B. Tk. 434
C. Tk. 436.75
D. Tk. 420

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Answer: Option B

Explanation:

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3062 . The compound interest on Tk 200 at 10% in 3 years is approximately -

A. 60
B. 62
C. 66
D. 64
E. 68

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Answer: Option C

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Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 40
B. 50
C. 75
D. 100

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Answer: Option B

Explanation:

let, capital = x
1st year interest = x*10/100 = x/10
2nd year interest = (x + x/10)10/100
= 11x/100
ATQ,
x/10 + 11x/100 = 10.5
= > x = 50

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3064 . The contents of a certain box consist of 9 apples and 27 oranges . How many oranges must be removed from the box so that 70% of the pieces of fruits in the box will be apples ?

A. 3
B. 4
C. 6
D. 8
E. None of these

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Answer: Option E

Explanation:

The objective here is that 70% of the fruit in the box should be apples.

Now, there are 6 apples at start and there is no talk of removing any apples, so number of apples should remain 6 and they should constitute 70% of total fruit, so total fruit = 6/0.7 = 12 [approximate]
So we should have 12-6 = 6 oranges.
Right now, there are 27 oranges, so to get to 6 oranges, we should remove 27 - 6 = 21 oranges.

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3065 . The cost, in taka, of manufacturing x microwaves is 6000+300x taka. The amount received when selling these x microwaves is 700x taka. What is the least number of microwaves that must be manufactured and sold so that net profit is Tk. 2,400?

A. 15
B. 21
C. 19
D. 17

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Answer: Option B

Explanation:

700x - 6000 - 300x = 2400

400x = 8400

x = 8400/400

x = 21

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3066 . The cost function of a product is 400 + 2x, where x is the number of units produced. How many units should be produced to make an average cost of TK. 2.5 per unit ?

A. 200
B. 800
C. 400
D. 720
E. 900

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Answer: Option B

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Bangladesh Bank - Officer(Cash) - 2011

A. 15
B. 17
C. 21
D. 19

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Answer: Option C

Explanation:

700x - 6000 - 300x = 2400

400x = 8400

x = 8400/400

x = 21

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3068 . The cost of 2 TV sets and a radio is Tk.7000, While 2 radios and one TV set togather cost Tk.4250. The cost of TV set is--

A. 3250
B. 3500
C. 3000
D. 3375

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Answer: Option A

Explanation:

2 x + y = 7000 ....(i)
x + 2y = 4250 .....(ii)
Solving (i) and (ii) we get,
x = 3250
∴ Cost of T.V. set is Rs. 3250.

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3069 . The cost of 9 mangoes and 5 apples is equal to the cost of 7 mangoes and 8 apples. Find the ratio between the cost of 1 mango and the cost of one apple.

A. 3 : 2
B. 2 : 3
C. 5 : 8
D. 9 : 7

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Answer: Option A

Explanation:

9x+5x=7x+8x

⇒ 2x=3y

⇒x/y=3/2

x:y=3:2.

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বাংলাদেশ ব্যাংক || অফিসার (ক্যাশ) (21-07-2023)

A. dolor 125
B. dolor 125
C. dolor 225
D. dolor 335
E. None of them

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Answer: Option A

Explanation:

মনে করি, Actual price = 100 tk
20% discount এ বর্তমান মূল্য = (100 - 20) = 80 taka
বর্তমান মূল্য 80 tk হলে Actual price 100 tk

বর্তমান মূল্য 100 tk হলে Actual price 100x100/80 = 125tk

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3071 . The cost of carpeting a room 18 m long with a carpet 75 cm wide at Tk. 4.50 per meter is TK. 810. The breadth of the room is:

A. 7 m
B. 8 m
C. 7.5 m
D. 8.5 m

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Answer: Option C

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3072 . The cost of making x units is Y = 5x + 10, the average cost of making 10 units is--

A. Tk. 5
B. Tk.6
C. Tk.7
D. Tk.8

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Answer: Option B

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3073 . The cost of picture frame M is Tk.10.00 less than 3 times the cost of picture frame N. If the cost of frame M is Tk.50.00, what is the cost of frame N?

A. Tk.13.33
B. Tk.16.66
C. Tk.20.00
D. Tk.26.66

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Answer: Option B

Explanation:

Cost price of N = x

Cost price of M = 3x - 10

3x - 10 = 50

= > 3x = 60

= > x = 60/3

∴x = 20

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3074 . The cost of preparing a cricket ground of rectangular shape at 70 paisa per square meter is Tk. 420. Find the perimeter of the field if its sides are in the ratio of 3 : 2.

A. 100m
B. 50m
C. 110m
D. 600m

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Answer: Option A

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3075 . The cost of renting a small bus for a trip was Taka X which was to be shared equally by 16 persons . Actually 10 persons availed the trip. How much more Taka will be the cost per persons ?

A. X/6
B. X/10
C. 3X/40
D. x/16
E. 3X/80

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Answer: Option E

Explanation:

Initial cost per person = X/16

Actual cost per person = x / 10

More = x/10 - x/16 = ( 8x - 5x) / 80 = 3x/80.

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Bangladesh Bank - Assistant Director - 2010

3061 . The compound interest on Tk. 2800 for 18 months at 10% p.a. is

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3062 . The compound interest on Tk 200 at 10% in 3 years is approximately -

3063 . The compund interest at 10% per annum on a certain amount of money for two years is TK. 10.50. Then what is the principal amount in TaKa ?

3064 . The contents of a certain box consist of 9 apples and 27 oranges . How many oranges must be removed from the box so that 70% of the pieces of fruits in the box will be apples ?

3065 . The cost, in taka, of manufacturing x microwaves is 6000+300x taka. The amount received when selling these x microwaves is 700x taka. What is the least number of microwaves that must be manufactured and sold so that net profit is Tk. 2,400?

3066 . The cost function of a product is 400 + 2x, where x is the number of units produced. How many units should be produced to make an average cost of TK. 2.5 per unit ?

3067 . The cost in Taka of manufacturing x microwaves is 6000 + 300x Taka. The amount received when selling these x microwaves is 700x Taka. What is the least number of microwaves that must be manufactured and sold so that the net profit is Taka. 2400?

3068 . The cost of 2 TV sets and a radio is Tk.7000, While 2 radios and one TV set togather cost Tk.4250. The cost of TV set is--

3069 . The cost of 9 mangoes and 5 apples is equal to the cost of 7 mangoes and 8 apples. Find the ratio between the cost of 1 mango and the cost of one apple.

3070 . The cost of a camera at 20% discount is dolor 100. Find its actual price.

3071 . The cost of carpeting a room 18 m long with a carpet 75 cm wide at Tk. 4.50 per meter is TK. 810. The breadth of the room is:

3072 . The cost of making x units is Y = 5x + 10, the average cost of making 10 units is--

3073 . The cost of picture frame M is Tk.10.00 less than 3 times the cost of picture frame N. If the cost of frame M is Tk.50.00, what is the cost of frame N?

3074 . The cost of preparing a cricket ground of rectangular shape at 70 paisa per square meter is Tk. 420. Find the perimeter of the field if its sides are in the ratio of 3 : 2.

3075 . The cost of renting a small bus for a trip was Taka X which was to be shared equally by 16 persons . Actually 10 persons availed the trip. How much more Taka will be the cost per persons ?

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