Ratio & Proportion · Question 19 · Easy
If x : 12 :: 15 : 36, what is the value of x?
- 5
- 4
- 6
- 45
Answer and explanation
Answer: A. 5
Explanation: In a proportion, product of extremes = product of means: 36x = 12 × 15 = 180, so x = 5.
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