Ratio & Proportion · Question 24 · Medium
If A : B = 5 : 3 and A − B = 18, what is A + B?
- 48
- 54
- 72
- 90
Answer and explanation
Answer: C. 72
Explanation: A − B = 2 parts = 18, so one part = 9. A + B = 8 parts = 72.
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