A trader marked his goods at 20% above the cost price. He

A trader marked his goods at 20% above the cost price. He sold half the stock at the marked price, one quarter at a discount of 20% on the marked price and the rest at a discount of 40% on the marked price. His total gain is

Let the C.P. of total goods be ₹ 100.
∴ Marked price = ₹ 120

S.P. of	1	stock
	4

= (80% of 120) ×	1	= ₹ 24
	4

∴ Loss = ₹ (25 – 24) = ₹ 1

S.P. of remaining	1	stock
	4

= (60% of 120) ×	1	= ₹ 18
	4

∴ Loss = ₹ (25 – 18) = ₹ 7
∴ Gain = 10 – 1 – 7
= ₹ 2 i.e., 2%