A merchant sold an article at 10% loss. If he had sold it Rs 450 more, 8% would have been gained on the cost price. Find the cost price ?
A. Rs 1200
B. Rs 1800
C. Rs 1500
D. Rs 2500
Answer : D. Rs 2500
Explanation :
Let the cost price be 100%. It is sold at 10% loss. So it is sold at 90% of the cost price.
90 % of the cost price + 450 = 108% of the Cost price.
18% of the cost price = Rs.450
Cost price of the book = 450/18 x 100
= Rs 2500 .