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Ravi buys some toffees at 2 for a rupee and sells them at 5 for a rupee. His loss percent is
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- 120%
- 90%
- 30%
- 60%
Correct Option: D
Let Ravi buy 10 toffees. { ∴ LCM of 5 and 2 = 10 )
C.P. of 2 toffees = $ 1
∴ C.P. of 10 toffees = $ 5
C.P. of 5 toffees = $ 1
∴ S.P. of 10 toffees = $ 2
Loss = C.P. of 10 toffees - S.P. of 10 toffees = 5 - 2 = $ 3
| ∴ Loss % = | × 100 % | C.P. of 10 toffees |
| Loss % = | × 100 = 60 % | 5 |
We can find required answer with the help of given formula :
Here, a = 2, p = 1 and b = 5, q = 1
| Gain % = |  | aq - bp |  | × 100% | |
| bp |
| Gain % = | | 2 × 1 - 5 × 1 | | × 100% | ||
| 5 × 1 |
| Gain % = | × 100% | 5 |
= -60% (-ve sign shows loss)
