1.

A shopkeeper claims to sell his articles at a discount of 10%, but marks his articles by increasing the cost of each by 20%. His gain per cent is (a) 6% (b) 8% (c) 10% (d) 12%

Answer»

(b) 8%

Let C.P. = Rs 100. Then M.P. = Rs 120 Discount = 10%

\(\therefore\) S.P. = 90% of Rs 120 = \(\frac{90}{100}\) x Rs 120 = Rs 108

\(\therefore\) Gain % = 8%



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