30% of 150 + 20% of 50 = ? MCQ with Answer and Explanation

30% of 150 + 20% of 50 = ?

A. 65

B. 55

C. 70

D. 60

Answer: Option B

30% of 150 = 45, 20% of 50 = 10, sum = 55.

This question belongs to: Maths Percentage

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Question #1 Report Error

A man spends 75% of his income. Income increases by 20%, expenditure by 10%. % change in savings:

A. 40%

B. 60%

C. 50%

D. 30%

Correct Answer: Option C

Explanation:
Let income 100, exp 75, sav 25. New income 120, exp 82.5, sav 37.5. Increase 12.5 on 25 = 50%.

This question belongs to: Maths Percentage

Question #2 Report Error

What is 10% of 200?

A. 10

B. 40

C. 30

D. 20

Correct Answer: Option D

Explanation:
10% of 200 = (10 / 100) * 200 = 20.

This question belongs to: Maths Percentage

Question #3 Report Error

A student has to secure 33% marks to pass. He gets 120 marks and fails by 12 marks. Find the maximum marks.

A. 500

B. 400

C. 350

D. 450

Correct Answer: Option B

Explanation:
Passing marks = 120 + 12 = 132. 33% of Maximum = 132. Maximum = 132 * (100 / 33) = 400.

This question belongs to: Maths Percentage