a dealer sells a transistor at a gain of 16%.if he had sold it for 20ru. more, he would have gained 20% .find the c.p. of transiator.
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Let the C.P of the transistor be X
The selling price when he sell at a gain of 16%=116x/100 = 29x/25
The selling price of the transistor when he sells at a gain of 20% = 120x/100 =30x/25
The equation is 30X/25 - 29X/25 = 20
or X/25 = 20
or X =25x20 = 500
Therefore the cost price is rs 500
The selling price when he sell at a gain of 16%=116x/100 = 29x/25
The selling price of the transistor when he sells at a gain of 20% = 120x/100 =30x/25
The equation is 30X/25 - 29X/25 = 20
or X/25 = 20
or X =25x20 = 500
Therefore the cost price is rs 500
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