Question

the average weight of 20 boys is 35 Kg. if 15 more boys are are added then the total weight of all boys become 1075 KG. what is the average weight of 15 boys.​

Answer 1

Answer:

25 kg

Step-by-step explanation:

total wt is 20×35=700.

total wt of remaining 15 boys is 1075-700=375

therefore, average weight of 15 boys will be 375÷15=25 kg

Answer 2

Answer:25

Step-by-step explanation:

Let the total weight of first 20 boys be x

According to problem :

x/20 = 35

x = 700

Let total weight of the next 15 boys be y

so, 700 + y = 1075

y = 375

Avg of 15 boys = 375/15 = 25