Question

There are 50 boys in a class.Their average weight is 45kg.When one boy leaves the class,the average reduces by 100g.Find the weight of the boy who left the class
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Answer 1

Answer:

weight of the boy who left is 49.9kg

Step-by-step explanation:

new avg - intial avg

=50(45)-49(45-0.1)

=45+(4.9)

=49.9kg