SOLUTION: The difference between 3/4 of a line and 2/5 of the same line is 28cm.Find the length of the line.

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Question 636727: The difference between 3/4 of a line and 2/5 of the same line is 28cm.Find the length of the line.
Answer by sachi(548) About Me  (Show Source):
You can put this solution on YOUR website!
let the line is x cm
then 3x/4-2x/5=28
or 15x-8x=28*5*4=560
or x=560/7=80 cm ans