Question

1) The average weight of 15 boys is 25kgs. And that of the remaining 8 is 20; find the average
weight of remaining 7?

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Answer 1

Step-by-step explanation:

Weight of 15 boys=25×15=375

Weight of 8 boys =8×20=160

Weight of 7 boys = 375-160= 215

Average 215/7 = 30.714