Mathematics · Ratio and Proportion
If a : b = 3 : 7, then the ratio of (5a + 7b) : (7a + 5b) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 18 : 7✓
- 27 : 9
- 37 : 11
- 43 : 7
Correct answer
8 : 7
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