If 40% of a number is 80, the number is: MCQ with Answer and Explanation

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If 40% of a number is 80, the number is:

A. 200

B. 150

C. 100

D. 250

Answer: Option A

Solution (By JKSSB Mock Tests)

0.4x = 80 → x = 200.

This question belongs to: Maths Percentage

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Question #1

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In a mixture of 120 litres, the ratio of milk and water is 2:1. How much water is added to change the ratio to 1:2?

A. 130 L

B. 110 L

C. 120 L

D. 100 L

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Correct Answer: Option C

Explanation:
Milk=80, water=40. For 1:2, water=160, add 120 L.

This question belongs to: Maths Percentage

Question #2

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If 20% of a number is added to 60, the result is the number itself. Find the number.

A. 85

B. 70

C. 80

D. 75

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Correct Answer: Option D

Explanation:
0.2x + 60 = x → 0.8x = 60 → x = 75.

This question belongs to: Maths Percentage

Question #3

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In an election, the losing candidate secured 40% of the votes and lost by 1200 votes. What was the total number of votes?

A. 5000

B. 4000

C. 7000

D. 6000

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Correct Answer: Option D

Explanation:
Loser = 40%, Winner = 60%. Difference = 20%. 20% of Total = 1200. Total = 1200 * (100 / 20) = 6000.

This question belongs to: Maths Percentage

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