ahmed404
ahmed404 ahmed404
  • 24-12-2017
  • Mathematics
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The cost of a transistor decreases from 400 to 380. What is the percentage of decrease?

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AL2006
AL2006 AL2006
  • 24-12-2017

The amount of the decrease is  (400 - 380)  =  20 .

As a fraction of the original cost, the decrease is

            ( 20 / 400 )  =  0.05   =   a decrease of 5%
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