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

Two numbers are in the ratio 15:6 and their sum is 521. Find the numbers.
A. 375 and 127
B. 347 and 158
C. 360 and 144
D. 720 and 288
Answer: Option C
Solution (By JKSSB Mock Tests)
Numbers = 15k and 6k. 15k + 6k = 521 ⇒ k = 24. Thus, numbers are 360 and 144.

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Practice More Ratio and Proportion Questions

Question #1
Two numbers are in the ratio 14:6 and their sum is 644. Find the numbers.
A. 896 and 384
B. 433 and 198
C. 448 and 192
D. 462 and 176

Correct Answer: Option C


Explanation:
Numbers = 14k and 6k. 14k + 6k = 644 ⇒ k = 32. Thus, numbers are 448 and 192.

This question belongs to: Maths Ratio and Proportion
Question #2
If a:b = 2:8 and b:c = 8:11, then a:b:c = ?
A. 2:8:11
B. 4:16:22
C. 2:9:11
D. 1:8:12

Correct Answer: Option A


Explanation:
Combine ratios: a:b = 2:8, b:c = 8:11 ⇒ a:b:c = 2:8:11.

This question belongs to: Maths Ratio and Proportion
Question #3
Find the mean proportional between 4 and 32.
A. 22
B. 11
C. 14
D. 36

Correct Answer: Option B


Explanation:
Mean proportional = √(4 × 32) = √(128) = 11.

This question belongs to: Maths Ratio and Proportion