Question

NTSE Practice Question How much percent above the cost price should a shopkeeper mark his goods so that after allowing a discount of 20% on the marked price, he still has a gain of 10% ?
(a) 10
(b) 25.5
(c) 30
(d) 37.5

Answer 1

Let the cost price be Rs 100
Gain = 10%
Selling price = Rs 110
Discount = 20%

Mp = $SP( \frac{100}{100-d})$

Mp = $110( \frac{100}{100-20})$
Mp = $110( \frac{100}{80})$

MP = Rs137.50

Difference between MP and CP = Rs 37.50

Percentage = 37.5