Question

A shopkeeper sells an article at 720rs by making a profit of x% and on interchanging selling price and cost price, it would be loss of y%. Find the selling price if an article was sold at y% profit whose cost price is Rs 720?(given x:y= 9:7)​

Answer 1

Answer:

Let CP =x=x, so S.P =1.2x

When CP is Rs. 100 less,

CP=x−100

SP=1.2x−100

Now,

1.2x−100=1.24×(x−100)

On solving , we get

x=600

CP=Rs.600