3076 . 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?

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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3077 . 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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3078 . 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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3080 . 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

Explanation:

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3081 . 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

Explanation:

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3082 . 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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3083 . 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

Explanation:

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3084 . 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

A. 52.30%
B. 35.00%
C. 34. 48%
D. 30.00%

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Answer: Option C

Explanation:

Let CP of each article be Tk. 29 and SP of each article be Tk. 19
Loss Percentage = (29x−19x) × 100/29x = 34.48%

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

A. 15%
B. 20%
C. 10%
D. 25%

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Answer: Option B

Explanation:

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One Bank Ltd || Special Cadre Officer (03-01-2025) || 2025

A. TK. 300 and Tk. 390
B. TK. 390 and TK. 300
C. TK. 480 and TK. 210
D. Tk. 400 and TK. 290

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Answer: Option A

Explanation:

ধরি, চেয়ারের ক্রয়মূল্য = x

টেবিলের ক্রয়মূল্য = x + 30% of x

প্রশ্নমতে, x + x + 30% of x = 690

2x + x × 30/100 = 690

200x + 30x = 69000

230x = 69000

x = 300

টেবিলের ক্রয়মূল্য = 300 + 30% of 300 = 300 + 90 = 390 টাকা

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3088 . The cube root of 1331 is?

A. 13
B. 11
C. 19
D. 12

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Answer: Option B

Explanation:

এখানে, (11)³(11)3 = 1331
অর্থাৎ 1331 এর ঘনমূল = 11

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সোনালী ও ডিবিবিএল ব্যাংক- সিনিয়র অফিসার (আইটি) - 16.10.2020 ||

A. 21%
B. 2.1%
C. 0.021%
D. 0.0021%

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Answer: Option B

Explanation:

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3090 . The daily rate for a hotel room that sleeps 4 people is Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk 210 for the room, then what is the value of X?

A. 60
B. 120
C. 80
D. 240

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Answer: Option B

Explanation:

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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)

3076 . 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?

3077 . 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--

3078 . 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.

3079 . The cost of a camera at 20% discount is dolor 100. Find its actual price.

3080 . 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:

3081 . The cost of making x units is Y = 5x + 10, the average cost of making 10 units is--

3082 . 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?

3083 . 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.

3084 . 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 ?

3085 . The cost price of 19 articles is same as the selling price of 29 articles. What is loss percentage?

3086 . The cost price of 6 oranges equals selling price of five. The profit or loss percent in the transaction is:

3087 . The cost price of a table and a chair together is TK. 690. If the table costs 30% more than the chair, then find the cost price of the table and the chair respectively.

3088 . The cube root of 1331 is?

3089 . The current birth rate per thousand is 32, where as corresponding death rate is 11 per thousand. The net growth in terms of population increase in percent is given by--

3090 . The daily rate for a hotel room that sleeps 4 people is Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk 210 for the room, then what is the value of X?

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