A ball and a bat cost a total of 110 The bat costs 100 more

A ball and a bat cost a total of $110. The bat costs $100 more than the ball. How much does the ball cost?

Solution

Let the cost of ball be = $x

So, cost of bat = 100 + x

total cost = 100 + x + x

So, 100 + 2x = 110

or, 2x = 10

or, x = 5

So, cost of ball is $5 and cost of bat is $105