Question

The weights of 5 friends are 60 kg, 49 kg, 54 kg, 62 kg and 58 kg. Find their average weight.?,​

Answer 1

$\large\huge\ \: {\sf{Answer}}$

Let there be n students in the class.

60n+64(8)=62(n+8)

62n−60n=64(8)−62(8)

2n=16

n=8

Therefore, initially there were 8 students in the class.

Answer 2

$\large\bold\orange{\underline{Question :-}}$

➻ The weights of 5 friends are 60 kg, 49 kg, 54 kg, 62 kg and 58 kg. Find their average weight?

$\large\bold\green{\underline{Answer :-}}$

✯ Weight of 5 friends = 60 kg, 49 kg, 54 kg, 62 kg and 58 kg.

✯ Sum of weight of 5 friends = (60+49+54+62+58)kg = 283 kg

✯ Total no.of friends = 5

✯ Average weight = Sum of weighted terms/Total terms

ㅤㅤ ㅤㅤㅤㅤㅤ ㅤ = (283/5) kg

ㅤㅤ ㅤㅤㅤㅤㅤ ㅤ = $\boxed{\rm{\red{56.6kg}}}$