Wood

Peter chops wood. If they cut down a half hours a day he ended work in 9 days. But Peter needs to end work 3 days earlier. How many minutes a day should cut down?

Result

x =  45 m

Solution:


9*30=(9-3)*x

6x = 270

x = 45

Calculated by our simple equation calculator.

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To solve this example are needed these knowledge from mathematics:

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