Mathematics · Ratio and Proportion

The compound ratio of 1 : 2, 3 : 10 and 10 : 21 is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

17 : 1
21 : 14✓
31 : 7
414 : 1

Correct answer

1 : 14

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The compound ratio of 1 : 2, 3 : 10 and 10 : 21 is:

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The compound ratio of 1 : 2, 3 : 10 and 10 : 21 is:

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