Question
The average weight of a group of five persons, A, B, C,
D, and E is 70 kg. If another person K joins the group then the average weight of the group is decreased by 4 kg, then find the weight of K.Solution
Total weight of A, B, C, D, and E together = 70 × 5 = 350 kg Weight of K = 66 × 6 – 350 = 396 – 350 = 46 kg
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