A farmer bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?

A) 3

B) 5

C) 4

D) 6

Solution(By PreparationPoint)

C.P.of toffees = Rs.1


S.P.of 6 toffees = 120% of Rs.1=Rs. 6/5  
 
For Rs. 6/5, toffeess old = 6.
 
For Rs.1,toffees sold=6×5/6 = 5

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