Saturday

March 28, 2015

March 28, 2015

Posted by **es** on Thursday, January 10, 2013 at 6:55am.

A carpenter has several boards of equal length. He cuts 3/5 of each board. After cutting the boards the carpenter noticies he has enough pieces left to make up the same length as 4 origional boards. How many origional boards did he start with?

Someone told me the answer is 10 but I do not understand how they got it. I would like to know how to do the question, so can you explain the steps.

Thanks

- math -
**Reiny**, Thursday, January 10, 2013 at 8:52amLet the number of boards he had be x

So the number of pieces he has left over is (2/5)x

So he wants to have 4 lengths or 4x created by these (2/5)x's

(2/5)x --> 4 * (2/20)x ----> 4x * (1/10)

or

4x ÷ ((2/5)x)

= 4x * ((5/2)(1/x))

= 10

**Answer this Question**

**Related Questions**

4th grade math - A carpenter has several boards of equal length. He cuts 3/5 of ...

Math - A carpenter has several boards of equal length. He cuts 3/5 of each board...

Math - A carpenter has several boards of equal length. he cuts 3/5 of each board...

Math - A carpenter has several boards of equal length. He cuts 3/5 of each board...

math - a carpenter has several boards of equal length. he cuts 3/5 of each board...

math - HELP heres a math problem ; give me a formula for it please;;; a ...

Math - If I have several boards that I cut 3/5 off each one and end up with 4 ...

math - a carpenter has a wooden stick that is 84 centimeters long.then she cuts ...

Math - A carpenter has a wooden stick that is 84 centimeters long. She cuts off ...

Math-percents - A carpenter has a wooden stick that is 84cm long.she cuts off 25...