A shopkeeper earns a profit of 10% after allowing a discount of 20% on the marked price. The cost price of the article whose marked price is Rs. 880, is = ?
A. Rs. 704
B. Rs. 640
C. Rs. 774
D. Rs. 680
Answer: Option B
Solution (By Examveda Team)
Market price of the article = Rs. 880After discount selling price of the article
$$\eqalign{ & {\text{ = }}\frac{{880 \times 80}}{{100}} \cr & {\text{ = Rs}}{\text{. 704}} \cr & {\text{Cost price of the article }} \cr & {\text{ = }}\frac{{704 \times 100}}{{110}} \cr & = {\text{Rs}}{\text{. 640}} \cr} $$
This Question Belongs to Arithmetic Ability >> True Discount
704 into 100 diveded by 100 is 704 not 640. WRONG