A package tour operator allows a 25% discount on his advertised price and then makes a profit of 20%. What is the advertised price on which he gains Tk. 60?

Question: A package tour operator allows a 25% discount on his advertised price and then makes a profit of 20%. What is the advertised price on which he gains Tk. 60?

Solution:
Let,
the advertised price = x

Profit = Selling price - Cost Price = 60.
Selling price = 1.2 (C.P.)
∴ 1.2 C.P - C.P. = 60
⇒ 0.2 C.P. = 60
⇒ C.P. = 300
and Selling price = 360.

75% of x = 360
⇒ (75/100)x = 360
⇒ x = (360 × 100)/75
∴ x = 480