Mathematics · Ratio and Proportion
If a : b = 1 : 3, b : c = 5 : 7, and c : d = 9 : 5, then the value of a : b : c : d is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115 : 45 : 63 : 35✓
- 225 : 75 : 105 : 45
- 35 : 75 : 105 : 35
- 415 : 75 : 105 : 35
Correct answer
15 : 45 : 63 : 35
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