2416 . In a class of 200 students , 40 percent are girls . 25 percent of the boys and 10 percent of the girls signed up for a tour to Cox's bazar . What percent of the class signed up for the tour?

A. 19%
B. 23%
C. 25%
D. 27%
E. 35%

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Answer: Option A

Explanation:

ধরি, total student = x তাহলে x এর 40% girls = .40% এদের মধ্যে 10% অর্থাৎ . 10 ×.40x girls এবং একইভাবে . 25 ×. 60x boys যার tour এ অর্থাৎ percent of the class signed up

= (. 25×.60x + . 10 ×.40x) /x ×100% = 19%

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2417 . In a class of 22 students, 21 students get an average of 44 marks. If the remaining students get 66 marks, the average marks of the whole class is--

A. 30
B. 45
C. 15
D. None of these

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Answer: Option B

Explanation:

Total marks of the 21 students = 44 x 21 = 924

So, total marks of the whole class = 924 + 66 = 990

Average marks of the whole class = 990 / 22 = 45.

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2418 . In a class of 25 students 44% are boys. What is the ratio of girls in the class?

A. 11 : 14
B. 25 : 14
C. 4 : 1
D. 1 : 4

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Answer: Option A

Explanation:

Boys : Girls = 44 : 56 = 11 : 14

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2419 . In a class of 30 students 18 play football, 14 play cricket and 5 do not play any game. How many students play both the game?

A. 5
B. 7
C. 9
D. 11
E. 13

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Answer: Option B

Explanation:

30 - 5 = 25

18 + 14 = 32

32 - 25 = 7

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Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 37
B. 27
C. 23
D. 25

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Answer: Option B

Explanation:

Students opted for Math or Science, n(M U S) = 50 - 2 = 48

Students opted for Math, n(M) = 50 - 15 = 35

Students opted for Science, n(S) = 50 - 10 = 40

Students opted for both Math and Science n(M ∩ S) = n(M) + n(S) - n(A U B) = 35 + 40 - 48 = 27

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2421 . In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art?

A. 6
B. 8
C. 16
D. 24
E. None of these

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Answer: Option B

Explanation:

50 - 18 - 26 + 2 = 8, as 2 take both art and music , we need to add them, as they get subtracted twice while subtracting 18 and 26 from 50.

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Bangladesh Bank - Officer(Cash) - 2011

A. 6
B. 4
C. 12
D. 16

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Answer: Option A

Explanation:

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

A. 3
B. 7
C. 12
D. 23

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Answer: Option C

Explanation:

Q. In a class of 60, where girls are twice that of boys , Kamal ranked seventeenth from the top . If there are 9 girls ahead of Kamal , how many boys are after him in rank ?

Let, No. of boys = x
As per question,
x + 2x = 60
∴ x = 20

∴ No. of boys = 20 and No. of girls = 40

As Kamal ranked 17th from the top, so there are 16 students ahead of him (including 9 girls).
that means, there are 7 boys and 9 girls ahead of Kamal.

Now, till 17th there are (7 boys + Kamal) = 8 boys
So, remaining boys that ranked after Kamal = (20-8) = 12 boys (Ans:)

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Bangladesh Bank - Assistant Director - 2016

A. 104
B. 845
C. 949
D. 897

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Answer: Option C

Explanation:

No. of sweets each student get = 20% of 65 = 13

No. of sweets each teacher get = 40% of 65 = 26

No. of sweets distributed to 65 students = 13 × 65 = 845

No. of sweets distributed to 4 teachers = 4 × 26 = 104

Therefore, the total no. of sweets there = 845 + 104 = 949.

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বাংলাদেশ ব্যাংক || সহকারী পরিচালক (AD) (20-10-2023)

A. 6
B. 15
C. 24
D. 33

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Answer: Option C

Explanation:

আমরা জানি, N(T) = N(A) + N(B) - N(A n B) + None

None = N(T) - N (A) - N(B) + N( A n B)

= 78 - 41 - 22 + 9 = 24

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সমন্বিত ৫ ব্যাংক ও ১ আর্থিক প্রতিষ্ঠান — অফিসার (ক্যাশ) (11-07-2025) | 2025

A. 63
B. 90
C. 147
D. 280
E. 490

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Answer: Option E

Explanation:

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Bangladesh Bank - Officer(Cash) - 2011

A. 37.5%
B. 50%
C. 60%
D. 62.5%

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Answer: Option A

Explanation:

Summation of ratios = 5 + 3 = 8

So, percentage of girls = 3 / 8 x 100% = 37.5%

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2428 . In a class there are 32 females. The ratio of female to male is 16 : 9. What is the percentage of female in that class?

A. 32%
B. 36%
C. 56.25%
D. 64%

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Answer: Option D

Explanation:

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2429 . In a club 50% of the male voters and 80% of the female voters voted for candidate A . If candidate A received 70% of the total votes, what is the ratio of male to female voters?

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

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Answer: Option D

Explanation:

Equation : 25

Male voter = x

Female voter = y

50% of x + 80% of y = 70% of (x + y)

= > 50x/100 + 80y/100 = 70(x + y)/100

= > 50x + 80y = 70x + 70y

= > 80y 70y = 70x 50x

= > 10y = 20x

∴x/y = 10/20 = ½

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Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

A. 18%
B. 24%
C. 29%
D. 30%
E. None of these

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Answer: Option C

Explanation:

Boy's 45%, So, Girls = ( 100 - 45) % = 55%

Boy's went to picnic = 45% of 40% = 18%

Girls went to picnic = 55% of 20% = 11%

Total students went on a picnic = ( 18 + 11) % = 29 %

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2416 . In a class of 200 students , 40 percent are girls . 25 percent of the boys and 10 percent of the girls signed up for a tour to Cox's bazar . What percent of the class signed up for the tour?

2417 . In a class of 22 students, 21 students get an average of 44 marks. If the remaining students get 66 marks, the average marks of the whole class is--

2418 . In a class of 25 students 44% are boys. What is the ratio of girls in the class?

2419 . In a class of 30 students 18 play football, 14 play cricket and 5 do not play any game. How many students play both the game?

2420 . In a class of 50 students, 10 did not opt for math, 15 did not opt for science and 2 did not opt for either. How many students of the class opted for both math and science?

2421 . In a class of 50 students, 18 take music, 26 take art, and 2 take both art and music. How many students in the class are not enrolled in either music or art?

2422 . In a class of 60, 32 studied English, 28 studied Bengali and 6 did not study either. How many of the students studied both?

2423 . In a class of 60, where girls are twice that of boys , Kamal ranked seventeenth from the top . If there are 9 girls ahead of Kamal , how many boys are after him in rank?

2424 . In a class of 65 students and 4 teachers, each student got sweets that are 20% of the total number of students and each teacher got sweets that are 40% of the total number of students. How many sweets are there?

2425 . In a class of 78 students 14 are taking French , 22 are taking German . Of the students taking French or German , 9 are taking both courses. How many students are not enrolled in either course?

2426 . In a class the ratio of boys and girls was 7 to 3. If there were 210 girls in the class, what was the number of boys in the class ?

2427 . In a class the ratio of the number of boys to girls is 5 : 3. What percent of the students of the class are girls?

2428 . In a class there are 32 females. The ratio of female to male is 16 : 9. What is the percentage of female in that class?

2429 . In a club 50% of the male voters and 80% of the female voters voted for candidate A . If candidate A received 70% of the total votes, what is the ratio of male to female voters?

2430 . In a college, 45% of the students are boys. If 40% of the boys and 20% of the girls went on a picnic, what percentage of the total students went to the picnic?

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