In a class of 60 students, 55% are girls. Number of boys is: MCQ with Answer and Explanation

In a class of 60 students, 55% are girls. Number of boys is:

A. 27

B. 24

C. 30

D. 33

Answer: Option A

45% of 60 = 27 boys.

This question belongs to: Maths Percentage

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Question #1 Report Error

A student gets 180 marks and fails by 30 marks. The passing percentage is 35%. What is the total marks?

A. 800

B. 500

C. 700

D. 600

Correct Answer: Option D

Explanation:
Passing marks = 180 + 30 = 210. 35% of Total = 210. Total = 210 * (100 / 35) = 600.

This question belongs to: Maths Percentage

Question #2 Report Error

A's salary is 20% less than B's. If B's salary is 5000, A's salary is:

A. 4000

B. 4200

C. 4800

D. 3500

Correct Answer: Option A

Explanation:
A's salary = 5000 × 0.8 = 4000.

This question belongs to: Maths Percentage

Question #3 Report Error

If the price of sugar rises by 25%, by what percent must consumption be reduced so that expenditure remains the same?

A. 18%

B. 15%

C. 20%

D. 25%

Correct Answer: Option C

Explanation:
Reduction = (25/125)×100 = 20%.

This question belongs to: Maths Percentage