16 . A picnic was attended by 240 persons. There were 20 more men than women and 20 more adults then children. How many men were there in the picnic?

A. 110
B. 130
C. 200
D. 240
E. 75

View Answer	Favorite Question

Answer: Option E

Explanation:

Let, Number of women x

so, Number of men = x + 20

so, x + x + 20 = 240

বা, 2x = 220

বা, x = 110

Number of women 110

and Number of men = 110 + 20 = 130

17 . A police man spots a mugger from a distance of 200 meters. As the police man starts chasing the mugger, the mugger also starts also starts running. Given that the speed of the mugger is 10 km/h and that of the police man is 12 km/h, how far would have the mugger run before he is caught?

A. 3 km
B. 4 km
C. 2 km
D. 1 km
E. None of these

View Answer	Favorite Question

Answer: Option D

Explanation:

Lets say the mugger ran for T hours before being caught.

200 meters = 0.2 km

ATQ, 12T = 10T + 0.2

Or, 12T - 10T = 0.2

Or, T = 0.1 hour

So, he ran = 10T = 10 x 0.1 = 1 km.

18 . A school has a total of 90 students. There are 30 students taking Physics, 25 taking English, and 13 taking both. Approximately what percentage of the students is taking either Physics of English?

A. 32 %
B. 36 %
C. 47 %
D. 51 %

View Answer	Favorite Question

Answer: Option C

Explanation:

বাংলাদেশ ব্যাংক অফিসার ০২ -১২-২০২২

A. 20%
B. 15%
C. 5%
D. 30%
E. 0%

View Answer	Favorite Question

Answer: Option A

Explanation:

দুই আলাদা % এর থেকে common 25% বিয়োগ দিয়ে result টি হবে যা অন্তত news অথবা paper দেখে।

যারা দেখে না = 100 - ( 65 + 40 - 25) = 20%

20 . A trader makes a loss of 10% by selling a chair at a discount of 28% on the listed price.What will be his loss/profit if he sells the chair at 90% of its listed price?

A. 10%
B. 12.5%
C. 13.6%
D. 15%

View Answer	Favorite Question

Answer: Option B

Explanation:

Let list price is 100
Selling price (SP) at discount = 100-28 = Rs 72
Therefore Cost price = 72/90 x 100 = 80
When chair is sold for Tk. 90
profit = 90/80 x 100 - 1= 12.5%

21 . A train 360 m long is running at a speed of 45 km/hour. In what time will pass a bridge 140 m long?

A. 40 seconds
B. 42 seconds
C. 45 seconds
D. 48 seconds

View Answer	Favorite Question

Answer: Option A

Explanation:

Hints: train অতিক্রম করে নিজের length এবং bridge এর length 45km/hr = ( 45÷3.6)ms - 1 = 12.5 ms - 1

Time = 140 + 360 /12.5 = 40seconds.

22 . An employer pays 3 workers X, Y and Z a total of Tk.610 or 36600.00 a week. X is paid 125% of the amount of Y is paid and 80% of the amount of Z is paid. How much does X make a week?

A. Tk.150 or 8500
B. Tk.175 or 11700
C. Tk.180 or 10800
D. Tk.195 or 9000
E. Tk.200 or 12000

View Answer	Favorite Question

Answer: Option E

Explanation:

X = 125% of y = 125y/100 = 5y/4
Or, y = 4x/5
Again,
X = 80% of z = 80z/100 = 4z/5
Or, z = 5x/4
X:y:z = x:4x/5:5x/4 = 20:16:25
Sum of ratio = 20 + 16 + 25 = 61

So, x makes a week = 20/61 × 36600 = 20×600 = 12000 tk. (ans)

কর্ণফুলী গ্যাস ডিস্ট্রিবিউশন কোম্পানী লিমিটেড || সহকারী ব্যবস্থাপক (সাধারণ) (04-12-2021)

A. x/2 - 500
B. (x + 1000)/2
C. (2x - 500)/2
D. 2x - 1000
E. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

24 . Babu hired a labor to clean his garden for Tk.35.50. He was very happy with the cleaning and paid the labor bonus in addition to the original agreed Tk.35.50. If the bonus was more than 10 percent but less than 15 percent of the contract amount, then the total amount paid must have been between Tk.

A. 40 & 42
B. 39 & 41
C. 38 & 40
D. 37 & 39
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Total amount paid if bonus was 10% = 35.50 + 10% of 35.50 = 35.50 + 3.55 = 39.05 TK

Total amount paid if bonus was 15% = 35.50 + 15% of 35.50 = 35.50 + 5.325 = 40.825 TK

So, the total amount paid must have been in between 39 TK & 41 TK.

25 . Eight years ago Mr. Karim was 1/3 th the age he will be after 10 years. What is his age now?

A. 18
B. 19
C. 20
D. 16
E. 17

View Answer	Favorite Question

Answer: Option E

Explanation:

26 . Find the value of (0.1 × 0.01 × 0.001) ÷ (0.2 × 0.02 × 0.002)

A. 14
B. 18
C. 21
D. 28
E. None

View Answer	Favorite Question

Answer: Option E

Explanation:

(0.1 × 0.01 × 0.001) / ( 0.2 ×0.02 × 0.002)

= 1/8

= 0.125

সঠিক উত্তর অপশনে নাই

27 . If both x and y are integers and x = 24y + 12, then which of the following must be true?

A. x/12 is even
B. x/6 is even
C. (x + 4)/8 is odd
D. (x + 4)/8 is even
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

28 . If k is an integer and .0010101×10k is greater than 1000, what is the least possible value of k?

A. 2
B. 3
C. 4
D. 5
E. 6

View Answer	Favorite Question

Answer: Option E

Explanation:

By option test:

0.0010101*10^6 = 1010.1

তাই এখানে উত্তর হবে ৬। প্রশ্নে বলা আছে কত মান বসালে প্রদত্ত সংখ্যার থেকে নূন্যতম বড় সংখ্যা হবে। তাই ৬ বসালে শর্ত পূরন করে। ৭ বসালে বড় ব্যব ধান হবে আবার ৪ বসালে ছোট হয়ে যাবে। তাই এখানে ৬ বসালে সঠিকভাবে শর্ত পূরন করে।

29 . If the product of 20% of 85 and 40% of 45 is divided by 4, the result would be--

A. 76.5
B. 77
C. 76.3
D. 75.3
E. 67.5

View Answer	Favorite Question

Answer: Option A

Explanation:

85× (20/100) × 45 ×(40/100) /4

= (17 × 18) /4

= 76.5

30 . If two planes leave the same airport at 1:00 pm, how many miles apart will they be at 3:00 pm if one travels directly north at 150 mph and the other travels directly west at 200 mph?

A. 50 miles
B. 100 miles
C. 500 miles
D. 700 miles
E. None of these

View Answer	Favorite Question

Answer: Option C

Explanation:

The initial position of the plane along with their final positions will make a right - angled triangle and the hypotenuse of that triangle will be the direct distance between them at 3 pm. Now, travel time from 1 pm to 3 pm is 2 hours.

So, distance covered towards North = 150 x 2 = 300 miles and towards west = 200 x 2 = 400 miles.

Therefore, their direct distance = (3002 + 4002)1/2 = (90000 + 160000)1/2 = 2500001/2 = 500 miles.

16 . A picnic was attended by 240 persons. There were 20 more men than women and 20 more adults then children. How many men were there in the picnic?

17 . A police man spots a mugger from a distance of 200 meters. As the police man starts chasing the mugger, the mugger also starts also starts running. Given that the speed of the mugger is 10 km/h and that of the police man is 12 km/h, how far would have the mugger run before he is caught?

18 . A school has a total of 90 students. There are 30 students taking Physics, 25 taking English, and 13 taking both. Approximately what percentage of the students is taking either Physics of English?

19 . A survey of the town Sherpur found that 70% of the people watched the news on TV, 35% of the people read the news on newspaper and watched the TV and 25% read a newspaper and watched the TV news. What percentage of the people either watched the news on TV nor read it on the newspaper?

20 . A trader makes a loss of 10% by selling a chair at a discount of 28% on the listed price.What will be his loss/profit if he sells the chair at 90% of its listed price?

21 . A train 360 m long is running at a speed of 45 km/hour. In what time will pass a bridge 140 m long?

22 . An employer pays 3 workers X, Y and Z a total of Tk.610 or 36600.00 a week. X is paid 125% of the amount of Y is paid and 80% of the amount of Z is paid. How much does X make a week?

23 . Babu's income is Tk.1000 more than that of Selim. Their total salary is Tk.x. What is Selim's salary?

25 . Eight years ago Mr. Karim was 1/3 th the age he will be after 10 years. What is his age now?

26 . Find the value of (0.1 × 0.01 × 0.001) ÷ (0.2 × 0.02 × 0.002)

27 . If both x and y are integers and x = 24y + 12, then which of the following must be true?

28 . If k is an integer and .0010101×10k is greater than 1000, what is the least possible value of k?

29 . If the product of 20% of 85 and 40% of 45 is divided by 4, the result would be--

30 . If two planes leave the same airport at 1:00 pm, how many miles apart will they be at 3:00 pm if one travels directly north at 150 mph and the other travels directly west at 200 mph?

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