A trader allow two successive discount of 20% and 10% on an article. If a customer buys the article for Rs.108, what was its marked price?
Answer: (d) Rs.150
Let the market price be X
20% discount then, price = 80 x X/100
and again discount 10% = (80 x X/100) x 90 /100
(80 x X/100) x 90/100 = 108
X = 150
Hence, the market price = Rs.150