If a:b = 3:3 and b:c = 3:10, then a:b:c = ? MCQ with Answer and Explanation

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If a:b = 3:3 and b:c = 3:10, then a:b:c = ?

A. 2:3:11

B. 3:4:10

C. 6:6:20

D. 3:3:10

Answer: Option D

Solution (By JKSSB Mock Tests)

Combine ratios: a:b = 3:3, b:c = 3:10 ⇒ a:b:c = 3:3:10.

This question belongs to: Maths Ratio and Proportion

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Question #1

If a:b = 8:10 and b:c = 10:10, then a:b:c = ?

A. 7:10:11

B. 16:20:20

C. 8:10:10

D. 8:11:10

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Correct Answer: Option C

Explanation:
Combine ratios: a:b = 8:10, b:c = 10:10 ⇒ a:b:c = 8:10:10.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in the ratio 8:14 and their sum is 276. Find the numbers.

A. 192 and 336

B. 125 and 139

C. 84 and 185

D. 96 and 168

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Correct Answer: Option D

Explanation:
Numbers = 8k and 14k. 8k + 14k = 276 ⇒ k = 12. Thus, numbers are 96 and 168.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 8:5 and b:c = 5:6, then a:b:c = ?

A. 7:5:7

B. 8:5:6

C. 8:6:6

D. 16:10:12

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 8:5, b:c = 5:6 ⇒ a:b:c = 8:5:6.

This question belongs to: Maths Ratio and Proportion

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