Question

A merchant makes a profit of 20% after allowing a discount of 20% what should be his mark up?

Answer 1

Answer:Rs.150/Increase%=50%

Step-by-step explanation:  

Let C.P=100

Then, S.P=(20/100)×100+100

         S.P=120

Let M.P=X

S.P=M.P-Discount

120=X-(20/100)X

120=8X/10

1200=8X

X=150

Increase%=50%