Mathematics · Ratio and Proportion
If a : b = 7 : 9 and b : c = 15 : 7, then what is the ratio a : b : c?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 135 : 45 : 25
- 245 : 35 : 21
- 335 : 45 : 21✓
- 421 : 35 : 45
Correct answer
35 : 45 : 21
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