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A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price to the printed price of the book is
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- 45 : 56
- 50 : 61
- 99 : 125
- None of these
Correct Option: A
Here , profit = 12% and discount = 10%
Let the C.P. of article be Rs. p and its marked price be Rs. q.
According to the question,
90% of q = 112% of p
⇒ 90 × q = 112 × p
| ⇒ | = | = 45 : 56 | ||
| q | 112 |
∴ Required ratio = 45 : 56
