Question

Henry can mow an acre in 2 hours. Mitzi can mow an acre in 4 hours. How long would it take them to mow 30 acres?

1. 90 hours b. 15 hours c. 30 hours d. 40 hours e. 25 hours

Answer 1

40

Explanation:

Henry will take 2/3 or 20 acres and Mitzi will take 1/3 or 10 acres. Leading to it taking 40 hours.