Question

Holly is painting her garage. She estimates it will take her

4.5 hours to complete the job. Her brother Jasper offers to help and can paint at half the rate Holly paints. About how many hours should it take for both siblings to complete the job?

Answer 1

3

Explanation:

Using the work rate formula (1/Holly's time) + (1/Jasper's time which is twice of Holly's time) = 1/ Total time taken by both