Mathematics · Ratio and Proportion
If a : b = 3 : 7 and b : c = 4 : 9, then find a : b : c.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112 : 28 : 9
- 212 : 28 : 63✓
- 33 : 28 : 9
- 43 : 28 : 63
Correct answer
12 : 28 : 63
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