A tradesman allows a discount of 15% on the marked price.

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A tradesman allows a discount of 15% on the marked price. How much above the cost price must he mark his goods as to gain 19%?

Let the CP of the article be $ 100.
∴ SP on 19% gain = Rs. 119
If the marked price be y, then,

	85	× y = 119
	100

⇒	85	× y = 119
	100

⇒ y =	119 × 100	= 140
	85

Clearly, the marked price is 40% above the cost price.