Question

The average weight of 5 persons comes down by 2 kg when a new person comes in place of one of them weighing 50 kg. What is the weight of the new person?

Answer 1

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Here is the solution:

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Find the difference in total weight after the replacement of the person:

5 x 2 = 10 kg

*The drop of 10 kg must be the difference of the weight of the new person and the person he is replacing.

Find the weight of the new person:

50 - 10 = 40 kg

Answer: The new person weighs 40 kg