If a:b = 2:3 and b:c = 3:11, then a:b:c = ? MCQ with Answer and Explanation
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Question #1
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If a:b = 3:10 and b:c = 10:5, then a:b:c = ?
Correct Answer: Option A
Explanation:
Combine ratios: a:b = 3:10, b:c = 10:5 ⇒ a:b:c = 3:10:5.
Combine ratios: a:b = 3:10, b:c = 10:5 ⇒ a:b:c = 3:10:5.
This question belongs to:
Maths
Ratio and Proportion
Question #2
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If a:b = 5:3 and b:c = 3:7, then a:b:c = ?
Correct Answer: Option D
Explanation:
Combine ratios: a:b = 5:3, b:c = 3:7 ⇒ a:b:c = 5:3:7.
Combine ratios: a:b = 5:3, b:c = 3:7 ⇒ a:b:c = 5:3:7.
This question belongs to:
Maths
Ratio and Proportion
Question #3
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Two numbers are in the ratio 15:6 and their sum is 521. Find the numbers.
Correct Answer: Option B
Explanation:
Numbers = 15k and 6k. 15k + 6k = 521 ⇒ k = 24. Thus, numbers are 360 and 144.
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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