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Mr.Maina who deals in electronics sells a radio to a customer at Ksh. 1440 after giving a discount of 10% but find that he makes a 20% profit. Find the profit Mr. Maina would make if he does not give a discount.

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100% = x
90% = 1440

1440 x 100
      90
=1600

120% =1600

100% =x

1600 x 100
      120
=1333.3
1600 – 1333.3 = 266.70

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