Question
The average weight of a group of five persons, A, B, C,
D, and E is 100 kg. If another person K joins the group then the average weight of the group is decreased by 2.3 kg, then find the weight of K.Solution
Total weight of A, B, C, D, and E together = 100 Γ 5 = 500 kg Weight of K = 97.7 Γ 6 β 500 = 586.2 β 500 = 86.2 kg
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