Question

A boy brought 4 bats and 9 balls for 1340 rupees. He sold the bats at a profit of 10% and balls at a profit of 20% and the whole gain is 188. Find the cost of a bat and a ball.

Answer 1

Let suppose that the bat cost is X rupee and the ball cost is Y rupee.

X+Y=110 ———(1)

According to the cost of the bat X = (100+Y)——(2)

100+Y+Y=110

2Y=10

Y = (10/2)= 5 rupee answer.

So, the ball cost = Y= 5 rupee answer.

And the cost of bat = X = (100+Y)= (100+5)=105