The cost of manufacture of a tape recorder is ₹ 1,500.

The cost of manufacture of a tape recorder is ₹ 1,500. The manufacturer fixes the marked price 20% above the cost of manufacture and allows a discount in such a way as to get a profit of 8%. The rate of discount is

Marked price of tape recorder =	1500 × 120	= ₹ 1800
	100

Gain =	1500 × 8	= ₹ 120
	100

Discount = 1800 – (1500 + 120) = ₹ 180
Let Discount percent = d%, then

1800 × d	= 180 ⇒ d = 10%
100

Second Method to solve this question :
If the discount be y%, then

20 − y −	20y	= 8
	100

⇒ 20 −	6y	= 8
	5

⇒	6y	= 20 − 8 = 12
	5

⇒ y =	12 × 5	= 10%
	6