# How long will it take for water to hit his house?

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A man built his house above a river between two trees. He attaches his house to the middle of the two tree's trunks. He does this because the river rises by 3 inches each years, but the trees grow 2 inch each year. If his house is 9 inches above the river how long will it take for water to hit his house?

posted Jun 24, 2014

## 2 Solutions

+1 vote

Trees grow from the top, not the bottom so house will not move up at all. So it will take 3 years.

solution Jun 24, 2014
–1 vote

it will take 7 years

solution Jun 24, 2014 by anonymous

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