3 of the rest, how many bananas are still on the tree?

A. 8
B. 6
C. 4
D. 16

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Answer: Option A

Explanation:

3092 . There are 20 members on a football squad. In electing a captain and a co-captain, how many different outcomes of the election is possible ?

A. 760
B. 380
C. 190
D. None of these

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Answer: Option C

Explanation:

20C2 = (20!)/(2!*18!) = (20*19)/2 = 190

Bangladesh Bank - Officer - 2001

A. 32
B. 72
C. 60
D. 100
E. None of these

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Answer: Option B

Explanation:

Solution:

Let the time taken for one question be x

Then math question takes 2x

Remaining questions other than math questions are 150

then time taken for the remaining questions is 150x

Time taken to solve math questions = 50 × 2x = 100x

100x + 150x = 3 × 60

250x = 180

x = 180/250

Then time taken for math problems = 2 × 180/250 × 50 = 72 minute .

minute

Bangladesh Bank - Assistant Director - 2009

A. 30
B. 50
C. 40
D. 80

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Answer: Option D

Explanation:

Passed in Bangla = 76% of 200 = 152

Passed in English = 54% of 200 = 108

Failed in both subjects = 10% of 200 = 20

Passed in atleast one subject = 200 - 20 = 180

Passed in both subjects = 152 + 108 - 180 = 80

3095 . There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?

A. 40 seconds
B. 44 seconds
C. 48 seconds
D. 46 seconds

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Answer: Option C

Explanation:

There is error in the question or the options. If the options are right then the last line of the question will be How much more time will it take to reach the last pole?

If the pole 1 is the start point of car then,car is

At 0 zero seconds = in pole 1

At 24th seconds = in pole 12

So it has covered distance of 11 poles in 24 seconds.

So, time taken to cover distance between 2 poles is 2.18 seconds (24/11)

And hence the car would reach 23th pole in 48 seconds (2.18*22).

সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || অফিসার (জেনারেল) (08-03-2024)

A. 1
B. 3
C. 6
D. 9

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Answer: Option C

Explanation:

Ways : (3×2) = 6

Or, ways: 3! = 6

Ans: 6.

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

A. 1/2
B. 3/7
C. 3/4
D. 3/14
E. None of these

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Answer: Option D

Explanation:

মোট লোক সংখ্যা = (৪ + ৪) জন = ৮ জন

৪ জন হতে ১ জন মহিলা হওয়ার সম্ভাবনা = ৪/৮ = ১/২

বাকি ৩ জন মহিলা ও ৪ জন পুরুষ হতে ১ জন মহিলা হবার সম্ভাবনা = ৩/৭

দুইজন মহিলা হবার সম্ভাবনা = ১/২ × ৩/৭ = ৩/১৪

3098 . There are 40 members in a club; 9/20 of the members are engineers; and 4/5 of the members are male. What can be the possible minimum number of male engineers?

A. 10
B. 12
C. 16
D. 20

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Answer: Option A

Explanation:

3099 . there are 5 red and 3 black in a bag probability of drawing a black ball is

A. 5/8
B. 1/2
C. 3/8
D. 1/4

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Answer: Option C

Explanation:

মোট বলের সংখ্যা = 5 + 3 = 8 টি

কালো বলের সংখ্যা = 3 টি

একটি কালো বল উঠার সম্ভাব্যতা = 3/8

Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

A. 1/2
B. 3/7
C. 1/4
D. 3/14

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Answer: Option D

Explanation:

The probability that two women are selected is as follows:

4/8 x 3/7 = 1/2 x 3/7 = 3/14.

3101 . There are 8 more men than women on board of directors of a company. If there are 20 members on the board, how many are men ?

A. 6
B. 8
C. 12
D. 14

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Answer: Option D

Explanation:

Let, women = x

Men = x + 8

x + x + 8 = 20

2x = 12

x = 6

Women = x = 6

Men = 6 + 8 = 14 , Men = 20 - 6 = 14.

Bangladesh Bank - Assistant Director - 2010

A. 432
B. 450
C. 464
D. 448

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Answer: Option A

Explanation:

900 জন এর 4% = 900 x .04 = 36
36জন চলে যাওয়ায় বাকি থাকে  = 900 - 36 = 864
এবং বাকি 864এর 50% girls  = 864 x .50 = 432

3103 . There are deer and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs is 200. How many peacocks are there?

A. 20
B. 30
C. 50
D. 60
E. None of these

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Answer: Option D

Explanation:

3104 . There are n students in a school . If r% among the students are 12 years or younger, which of the following expressions represents the number of students who are solder than 12?

A. n(1-r)
B. n ( 100-r) /100
C. n(1-r)/100
D. 100(1-r)n

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Answer: Option B

Explanation:

3105 . There are total 40 dishes of rice and meat. If the ratio of number of rice dish to the number of meat dish is 3 to 2 , how many meat dishes are there?

A. 16
B. 24
C. 8
D. 32

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Answer: Option A

Explanation:

40/(3+2)=8

So, meat dishes=8×2=16

(ans)

Sonali &amp- Janata Bank Ltd. Senior Officer (IT/ICT) 08.06.2018

3091 . There are 18 bananas on a tree. If one munkey eats 1/3 of the bananas and another monkey eats 1/3 of the rest, how many bananas are still on the tree?

3092 . There are 20 members on a football squad. In electing a captain and a co-captain, how many different outcomes of the election is possible ?

3093 . There are 200 questions on a 3-hour examination . Among these questions 50 are mathematics problems. It is suggested that twice as much time be spent on each math problem as for each other question. How many minutes should be spent on mathematics problem

3094 . There are 200 students in a class. 76% passed in Bangla and 54% passed in English. If 10% of the students failed in both the subjects then how many of them passed in both subjects?

3095 . There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?

3096 . There are 3 doors to a lecture room. In how many ways can a lecturer enter the room from one door and leave from another door ?

3097 . There are 4 women and 4 men sitting in a waiting room for job interview. If two of the applicants are selected at random, what is the probalility that both will be women?

3098 . There are 40 members in a club; 9/20 of the members are engineers; and 4/5 of the members are male. What can be the possible minimum number of male engineers?

3099 . there are 5 red and 3 black in a bag probability of drawing a black ball is

3100 . There are 8 job applicants sitting in waiting room; 4 women and 4 men. If two of the applicants are selected at random, what is the probability that both will be women?

3101 . There are 8 more men than women on board of directors of a company. If there are 20 members on the board, how many are men ?

3102 . There are 900 students in a school. 4% of them left the school and 50% of the remaining are girls. How many girls remained in the school?

3103 . There are deer and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs is 200. How many peacocks are there?

3104 . There are n students in a school . If r% among the students are 12 years or younger, which of the following expressions represents the number of students who are solder than 12?

3105 . There are total 40 dishes of rice and meat. If the ratio of number of rice dish to the number of meat dish is 3 to 2 , how many meat dishes are there?

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