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A sells a bicycle to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays $ 225/- for it, the cost price of the bicycle for A is :
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- $ 110
- $ 125
- $ 120
- $ 150
Correct Option: D
Let the cost price of the bicycle for A be $ y
At 20% profit , Cost price for B = selling price for A = 1.20y
At 25% profit , Cost price for C = selling price
for B = (1.25) (1.20y) = 1.5y
But 1.5y = 225
| ∴ y = | = $ 150 | 1.5 |
∴ The cost price of the bicycle for A = $ 150
Using the given formula :
Here, r1 = 20%, r1 = 25%
C.P. for C = C.P. for A
225 = C.P. for A
| C.P. for A = | = $ 150 | 120 × 125 |
