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A shopkeeper earns a profit of 15% after selling a book at 20% discount on the printed price. The ratio of the cost price and printed price of the book is :
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- 20 : 23
- 23 : 20
- 16 : 23
- 23 : 16
Correct Option: C
Let the C.P. of article be Rs. x and marked price be Rs. y.
According to the question,
80% of y = 115% of x
| ⇒ y × | = | ||
| 100 | 100 |
⇒ 80y = 115x
| ⇒ | = | = | |||
| y | 115 | 23 |
