Question

9. The average weight of 4 boys in a rowing team is
52.2 kg. When a new boy joins the team, the average
weight of the team of 5 boys becomes 52 kg. What is
the weight of the new boy?​

Answer 1

Answer:

Given,

Average weight of 4 boys in a rowing team = 52.2 kg

total weight of boys = (4× 52.2) kg

= 208.8 kg

But, a new boy joins a team

So,

Average weight of 5 boys= 52kg

total weight of boys = (52×5) kg

=260 kg

Now,

we have to find the weight of the boy

= (260 - 208.8) kg

= 51.2 kg