Q17 of 174 Page 597

The mean weight of six boys in a group is 48 kg. The individual weights of five of them are 51 kg, 45 kg, 46kg and 44 kg. The weight of the 6th boy is

Given:


Mean weight of 6 boys = 48 kg


Let the weight of the 6th boy = x kg


Mean weight =



⇒


⇒ 235 + x = 48 × 6 = 288


⇒ x = 288 – 235 = 53 kg


Hence, the weight of the 6th boy = 53 kg.

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