Two numbers are in ratio 7:4. Their difference is 143. What is their sum? MCQ with Answer and Explanation

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Two numbers are in ratio 7:4. Their difference is 143. What is their sum?

A. 372

B. 264

C. 290

D. 132

Answer: Option B

Solution (By JKSSB Mock Tests)

Numbers 7k, 4k. Difference |7-4|k = 143 ⇒ k = 47. Sum = (7+4)k ≈ 264.

This question belongs to: Maths Ratio and Proportion

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Practice More Ratio and Proportion Questions

Question #1

If a:b = 5:9 and b:c = 9:6, then a:b:c = ?

A. 5:9:6

B. 4:9:7

C. 10:18:12

D. 5:10:6

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Correct Answer: Option A

Explanation:
Combine ratios: a:b = 5:9, b:c = 9:6 ⇒ a:b:c = 5:9:6.

This question belongs to: Maths Ratio and Proportion

Question #2

Two numbers are in ratio 7:4. Their difference is 53. What is their sum?

A. 471

B. 547

C. 418

D. 209

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Correct Answer: Option C

Explanation:
Numbers 7k, 4k. Difference |7-4|k = 53 ⇒ k = 17. Sum = (7+4)k ≈ 418.

This question belongs to: Maths Ratio and Proportion

Question #3

Milk and water are in ratio 8:3 in a 249 L mixture. Quantity of milk?

A. 362 L

B. 210 L

C. 181 L

D. 68 L

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Correct Answer: Option C

Explanation:
Total parts = 11. Milk = [8 / (8+3)] × 249 = 181 L.

This question belongs to: Maths Ratio and Proportion

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