The ratio of the marked price and the cost price of a pen is 3 : 2 while the ratio of marked price and selling price is 5 : 4. What is the profit percentage?
Given MP:CP=3:2
Multiplying 5 with numerator and denominator
MP:CP=15:10
MP:SP=5:4
Multiplying 3 with numerator and denominator
MP:SP=15:12
Therefore MP:CP:SP=15:10:12
CP=10x SP=12x
Profit %=((12x-10x)/10x)*100
=20%
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