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The cost price of a book is $ 150. At what price should it be sold to gain 20 %?
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- $ 120
- $ 180
- $ 100
- $ 80
Correct Option: B
Given that , Cost price of a book = $ 150
For gain 20 % , then
| Selling Price of book = 150 × | = $ 180 | 100 |
We can find required answer with the help of given formula :
| S.P. = C.P. |  |  | |||
| 100 |
| S.P. = | 100 |
| S.P. = | = $ 180 | 100 |
