Mathematics · Ratio and Proportion
If a ∶ b = 4 ∶ 9 and b ∶ c = 3 ∶ 7, then find a ∶ b ∶ c.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14 ∶ 6 ∶ 19
- 22 ∶ 9 ∶ 4
- 34 ∶ 9 ∶ 21✓
- 43 ∶ 5 ∶ 8
Correct answer
4 ∶ 9 ∶ 21
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