Mathematics · Ratio and Proportion
If r : s = 7 : 3, then what is the value of (7r + 3s) : (7r - 3s)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 133 : 23
- 229 : 20✓
- 321 : 14
- 444 : 23
Correct answer
29 : 20
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