A shopkeeper allows 20% discount on his advertised price

A shopkeeper allows 20% discount on his advertised price and to make a profit of 25% on his outlay. What is the advertised price (in Rs.) on which he gains Rs. 6000 ?

Profit on outlay = Rs. 6000
According to the question,
25% of outlay = Rs. 6000

∴ Outlay =	6000 × 100	= Rs. 24000
	25

Again, if the advertised price be Rs. x, then

x ×	80	= Rs. (24000 + 6000)
	100

⇒ x =	30000 × 100	= Rs. 37500
	80