Mathematics · Ratio and Proportion
If a : b = 3 : 4, b : c = 7 : 9, and c : d = 5 : 7, find the ratio a : d.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 15 : 11
- 23 : 11
- 37 : 12
- 45 : 12✓
Correct answer
5 : 12
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