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?]

asked Feb 1, 2019 221k views

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3 votes

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

Mr Jedi answered Feb 2, 2019

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7 votes

Answer: 7.2 hour

Step-by-step explanation:

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

Do Tat Hoan answered Feb 5, 2019

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