Two numbers are in the ratio 15:6 and their sum is 521. Find the numbers. MCQ with Answer and Explanation

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Two numbers are in the ratio 15:6 and their sum is 521. Find the numbers.

A. 720 and 288

B. 375 and 127

C. 347 and 158

D. 360 and 144

Answer: Option D

Solution (By JKSSB Mock Tests)

Numbers = 15k and 6k. 15k + 6k = 521 ⇒ k = 24. Thus, numbers are 360 and 144.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

Two numbers are in the ratio 5:9 and their sum is 612. Find the numbers.

A. 430 and 774

B. 196 and 394

C. 215 and 387

D. 240 and 375

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Correct Answer: Option C

Explanation:
Numbers = 5k and 9k. 5k + 9k = 612 ⇒ k = 43. Thus, numbers are 215 and 387.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 5:9. Their difference is 44. What is their sum?

A. 505

B. 619

C. 238

D. 476

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Correct Answer: Option D

Explanation:
Numbers 5k, 9k. Difference |5-9|k = 44 ⇒ k = 11. Sum = (5+9)k ≈ 476.

This question belongs to: Maths Ratio and Proportion

Question #3

If a:b = 4:5 and b:c = 5:4, then a:b:c = ?

A. 3:5:5

B. 8:10:8

C. 4:6:4

D. 4:5:4

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Correct Answer: Option D

Explanation:
Combine ratios: a:b = 4:5, b:c = 5:4 ⇒ a:b:c = 4:5:4.

This question belongs to: Maths Ratio and Proportion

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