Two numbers are in the ratio 7:15 and their sum is 454. Find the numbers. MCQ with Answer and Explanation

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Two numbers are in the ratio 7:15 and their sum is 454. Find the numbers.

A. 126 and 320

B. 170 and 281

C. 140 and 300

D. 280 and 600

Answer: Option C

Solution (By JKSSB Mock Tests)

Numbers = 7k and 15k. 7k + 15k = 454 ⇒ k = 20. Thus, numbers are 140 and 300.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 6:6 and b:c = 6:7, then a:b:c = ?

A. 5:6:8

B. 6:6:7

C. 12:12:14

D. 6:7:7

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Correct Answer: Option B

Explanation:
Combine ratios: a:b = 6:6, b:c = 6:7 ⇒ a:b:c = 6:6:7.

This question belongs to: Maths Ratio and Proportion

Question #2

Milk and water are in ratio 5:7 in a 377 L mixture. Quantity of milk?

A. 157 L

B. 220 L

C. 314 L

D. 199 L

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Correct Answer: Option A

Explanation:
Total parts = 12. Milk = [5 / (5+7)] × 377 = 157 L.

This question belongs to: Maths Ratio and Proportion

Question #3

Milk and water are in ratio 5:3 in a 366 L mixture. Quantity of milk?

A. 456 L

B. 138 L

C. 228 L

D. 270 L

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Correct Answer: Option C

Explanation:
Total parts = 8. Milk = [5 / (5+3)] × 366 = 228 L.

This question belongs to: Maths Ratio and Proportion

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