Math

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

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asked by Mark
  1. Let L be the original length of a board, and n be the number of boards.

    2/5 *n L = 4 L
    solve for n

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