Mixtures & Alligation · Question 24 · Medium
Mixtures & Alligation question 24
The average weight of a class is 52 kg. The average weight of the boys is 56 kg and that of the girls is 50 kg. What is the ratio of boys to girls?
- 2 : 1
- 3 : 1
- 2 : 3
- 1 : 2
Answer and explanation
Answer: D. 1 : 2
Explanation: By alligation, boys : girls = (52 − 50) : (56 − 52) = 2 : 4 = 1 : 2.
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