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October 15th, 2017, 10:09 AM   #1
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Pleae help me to solve this problem

A bicycle dealer allows 10% discount and still makes a profit of 20% on his bicycle. If the total profit he makes is Rs 150, find the list price of the bicycle.
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October 15th, 2017, 11:56 AM   #2
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profit, $P$, is 20% of dealer's cost, $C$ ...

$P = 150 = 0.2C \implies C = 750$

discount price, $D = C+P = 900 \implies$ list price before 10% discount is $L= 1000$
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