A number is 30% of another number. If the sum of the numbers is 390, find the larger number. MCQ with Answer and Explanation

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A number is 30% of another number. If the sum of the numbers is 390, find the larger number.

A. 270

B. 300

C. 260

D. 250

Answer: Option B

Solution (By JKExamLibrary)

Let larger x, smaller 0.3x. 1.3x = 390 → x=300.

This question belongs to: Maths Percentage

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Practice More Percentage Questions

Question #1

If the radius of a circle is increased by 100%, the area increases by:

A. 400%

B. 500%

C. 300%

D. 200%

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Correct Answer: Option C

Explanation:
Area proportional to radius². New radius 2r, area 4 times, increase = 300% (i.e., 4-1 = 3 times = 300%).

This question belongs to: Maths Percentage

Question #2

A student has to secure 40% marks to pass. He gets 150 marks and fails by 10 marks. What are the maximum marks?

A. 400

B. 300

C. 350

D. 450

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Correct Answer: Option A

Explanation:
Passing marks = 150 + 10 = 160. 40% of Maximum = 160. Maximum = 160 * (100 / 40) = 400.

This question belongs to: Maths Percentage

Question #3

28% of 500 is:

A. 130

B. 120

C. 140

D. 150

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Correct Answer: Option C

Explanation:
0.28 × 500 = 140.

This question belongs to: Maths Percentage

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