Question

9. when a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200 g. What is the average weight of the remaining 59 students?

Answer 1

Answer:

let total weight of 59 student is a

and average weight of 60 students is X.

Step-by-step explanation:

$x = \frac{a + 45}{60} \\ \frac{a}{59} = x + 0.2 \\ x = 56.8 \\ average \: weigh \: of \: the \: remaining \: 59 \: students \: is \: 57kg.$