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

Two numbers are in ratio 7:4. Their difference is 143. What is their sum?
A. 290
B. 372
C. 264
D. 132
Answer: Option C
Solution (By JKExamLibrary)
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 Report Error
If a:b = 2:8 and b:c = 8:8, then a:b:c = ?
A. 2:9:8
B. 1:8:9
C. 4:16:16
D. 2:8:8

Correct Answer: Option D


Explanation:
Combine ratios: a:b = 2:8, b:c = 8:8 ⇒ a:b:c = 2:8:8.

This question belongs to: Maths Ratio and Proportion
Question #2 Report Error
Two numbers are in ratio 7:4. Their difference is 53. What is their sum?
A. 471
B. 209
C. 547
D. 418

Correct Answer: Option D


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 Report Error
If a:b = 4:3 and b:c = 3:6, then a:b:c = ?
A. 3:3:7
B. 8:6:12
C. 4:4:6
D. 4:3:6

Correct Answer: Option D


Explanation:
Combine ratios: a:b = 4:3, b:c = 3:6 ⇒ a:b:c = 4:3:6.

This question belongs to: Maths Ratio and Proportion