Question

By selling an article for ₹2500, a man gains20%.find his gain​

Answer 1

$\large\bold\red{Solution}$

Selling Price = ₹2500

20% of 2500 = ${\frac{20}{100}}×2500$

= ₹500

Therefore he gains ₹500.

Answer 2

Answer:

Profit % =

C.P

S.P.−C.P.×100

=> C.P

900−C.P.

×100=20

⇒20C.P.=90000−100C.P.

⇒120C.P.=90000

⇒C.P.= Rs. 750