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The average weight of boys in a class is 30k kg and the average weight of girls in the same class is 20 kg. If the average weight of the whole class is 23.25 kg, what would be the possible strength of boys and girls respectively in the same class?

 (a)  14 and 26            (b) 13 and 27                  (c) 17 and 27         (d) None of these



Question ID - 51368 | SaraNextGen Top Answer

The average weight of boys in a class is 30k kg and the average weight of girls in the same class is 20 kg. If the average weight of the whole class is 23.25 kg, what would be the possible strength of boys and girls respectively in the same class?

 (a)  14 and 26            (b) 13 and 27                  (c) 17 and 27         (d) None of these

1 Answer
127 votes
Answer Key / Explanation : (b) -

Let the number of boys and girls in the class are  and

According to given information,

Hence, possible number of boys and girls 13 and 27 respectively.

127 votes


127