A dealer sold (3 / 4) of his articles at a gain of 20% and

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A dealer sold (3 / 4) of his articles at a gain of 20% and the remaining at cost price. The gain percent earned by him in the whole transaction is

1. 13%
2. 14%
3. 15%
4. 16%

Correct Option: C

Let 100 articles be sold and the CP of each article be $ 1.

∴ SP. of 75 articles = $			120	× 75		= $ 90
			100

Profit = $ (90 – 75) = $ 15

∴ Profit percent =	15	× 100 = 15%
	100