2761 . 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:

2762 . 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.

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%

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

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

2765 . 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

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:

2767 . 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:

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

A. Monday
B. Tuesday
C. Wednesday
D. Thursday

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Answer: Option A

Explanation:

Four days before Monday is Thursday, simply because four days after Thursday is Monday. Besides, day after the day after tomorrow is Thursday only if present day is Monday.

Bangladesh bank - officer ( general) - 27.04.2018

A. 13
B. 11
C. 8
D. 9

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Answer: Option D

Explanation:

ধরি,

সংখ্যা দুটি x ও y যেখানে x > y

x - y = 5

x2 - y2 = 65

( x + y) ( x - y) = 65

( x + y) 5 = 65

x + y = 65/5

x + y = 13

বড় সংখ্যাটি = ( x + y) + ( x - y) / 2 = 13 + 5/2 = 9

Assistant Director (General) 06.07.18

A. 11/18
B. 13/18
C. 15/18
D. 16/18

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Answer: Option A

Explanation:

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 99 meters
B. 198 meters
C. 63 meters
D. 136 meters

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Answer: Option B

Explanation:

2772 . The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?

A. 200
B. 250
C. 300
D. 350

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Answer: Option B

Explanation:

Given :

The diameter of the driving wheel = 140 cm

Speed of a bus = 66 km/hr

Concept Used:

Circumference of a circle = 2πr

Number of revolutions of a wheel (N) = D/d

d = Distance traveled by the wheel in 1 revolution

Calculation:

Distance travelled by bus in 1 hour = 66km = 6600 meter

Distance travelled by bus in 1 minute = (66000)/60 = 1100m

Distance travelled by a wheel in 1 revolution = Circumference = 2πr

Put 2r = 140 cm , 1 m = 100 cm , π =22/7

Therefore,

Distance traveled by a wheel in 1 revolution = (22/7) × (140/100)

Distance traveled by a wheel 1 revolution = 4.40 m

Now, using the above formula

N × 4.4 = 100

N = 250

∴ The number of revolutions per minute is 250.

সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (সাধারণ) (20-01-2023)

A. 75
B. 100
C. 125
D. None of these

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Answer: Option C

Explanation:

Let the number be ‘X’

According to question,

X - (3/5 )X = 50

or, X (1 - 3/5) = 50

or, X × 2/5 = 50

or, X = 50 × 5/2

∴ X = 125 (ans)

2774 . The difference between a number and its two-fifth is 510. What is 10 percent of that number?

A. 12.75
B. 85
C. 204
D. None of these

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Answer: Option B

Explanation:

Let the number be x

Then, x - 2x/5 = 510

(5x - 2x) /5 = 510

3x = 510×5

x = 850

So, 10% of 850 = 85

2775 . The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and difference of the digits of the number if the ratio between the digits the number is 1 : 2?

A. 4
B. 8
C. 16
D. 24
E. None of these

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Answer: Option B

Explanation:

বাংলাদেশ ব্যাংকের কার্য়াবলির মধ্যে একটি উল্লেখযোগ্য কাজ হলো - দেশের ব্যাংকিং খাতের নিরাপত্তা, সুষ্ঠুতা এবং স্থিতিশীলতা বজায় রাখার লক্ষ্যে এবং ব্যাংকিং খাতের শৃঙ্খলা, গ্রাহকদের স্বার্থ সংরক্ষণ ও ব্যাংকিং ব্যবস্থায় তাদের আস্থা ধরে রাখার উদ্দেশ্যে সরেজমিন পরিদর্শন এবং রিপোর্ট ভিত্তিক পরিবীক্ষণের মাধ্যমে তালিকাভুক্ত ব্যাংক ও নন - ব্যাংক আর্থিক প্রতিষ্ঠানসমূহ পর‌্যবেক্ষণ ও তত্ত্বাবধান করা।

2761 . 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.

2762 . 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 ?

2763 . The cost price of 19 articles is same as the selling price of 29 articles. What is loss percentage?

2764 . 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.

2765 . The cube root of 1331 is?

2766 . 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--

2767 . 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?

2768 . The day after the day after tomorrow is 4 days before Moday . What day is it today?

2769 . The defference between two numbers is 5 and the difference between their squares is 65 . What is the larger number ?

2770 . The denominator of a fraction is 5 more than the numerator. If the numerator as well as the denominator is increased by 3, the fraction becomes 5/9. The original fraction is

2771 . The diameter of a wheel is 63 cm. Distance traveled by the wheel in 100 revolutions is--

2772 . The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?

2773 . The difference between a number and its three fifth is 50. What is the number?

2774 . The difference between a number and its two-fifth is 510. What is 10 percent of that number?

2775 . The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and difference of the digits of the number if the ratio between the digits the number is 1 : 2?

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