Question

A man can harvest his farm in 18 hours. his son can harvest the same farm in 12 hours. how long will it take them working together?]

Answer 1

i think you would do 18+12=30 and half of 30 is 15 so,They would only work 15 hours.

Answer 2

Answer: 7.2 hour

Step-by-step explanation:


`\textnormal {Both of them work together =} \cfrac{18 * 12}{18 + 12} = 7.2 \textnormal { hours}`