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A man sells his typewriter at 5% loss. If he sells it for $ 80 more, he will gain 5%. The cost price of the typewriter is
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- $ 1,600
- $ 1,200
- $ 1,000
- $ 800
Correct Option: D
Let the CP of the typewriter be $ y.
| At 5% loss, SP = | 100 |
| Now, | + 80 = | 100 | 100 |
| ⇒ | - | = 80 | 100 | 100 |
| ⇒ | = 80 | 100 |
| ⇒ y = | = $ 800 | 10 |
Second method to solve this question :
Here, a = 5%, R = 80, b = 5%
| C.P. = | b + a |
| C.P. = | = $ 800 | 5 + 5 |
