A bat and a ball together cost 110. The bat costs 100 more than the ball. How much does the ball cost?
Q1. A bat and a ball together cost 110. The bat costs 100 more than the ball. How much does the ball cost?
Answer: 5
Explanation: Let the ball's cost be x. Then the bat's cost is x + 100. So, x + (x + 100) = 110, giving 2x = 10, hence x = 5.