Mathematics · Ratio and Proportion
If a : b = 3 : 4, then find the ratio (5a + 7b) : (7a + 5b).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 143 : 31
- 231 : 32
- 331 : 41
- 443 : 41✓
Correct answer
43 : 41
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