Mathematics · Mixtures and Alligations
The average weight of first category students and second category students of a dance class are 15.2 kg and 14.2 kg respectively, and the combined average weight of both categories is 14.8 kg. Find the ratio of the number of students of the first category to the second category.
- 13 : 2✓
- 22 : 3
- 33 : 4
- 44 : 3
Correct answer
3 : 2
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