SOLUTION: A building needed 14 windows. The builder had already installed 5 of them. If it takes four hours to install each window. How long will it take him to install the rest? I have tr

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Question 1060543: A building needed 14 windows. The builder had already installed 5 of them. If it takes four hours to install each window. How long will it take him to install the rest? I have tried subtracting 14 and 5 and then multiplying 9 and 4 and getting 36, but i am no sure if it is right.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
He already installed 5 windows, so he still needs to install the remaining 9 windows.

Four hours to install EACH window, 9 windows needing to be still installed?


Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

A building needed 14 windows. The builder had already installed 5 of them. If it takes four hours to install each window. How long will it take him to install the rest? I have tried subtracting 14 and 5 and then multiplying 9 and 4 and getting 36, but i am no sure if it is right.
You're right! Good job!

By the way, it should be: I have tried subtracting 14 5 and from 5 14...... 

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