UPTET Feb 2016,p1; Q105
0. If selling price is doubled, then profit become tripled. Therefore, profit percent is
- Option : B
- Explanation : Let the CP of an article be ₹x and SP be ₹y.
Gain = y - x .
According to the question,
Gain = (2y - x)
3 X (y - x) = 2y - x
3y - 3x = 2y - x
∴ y = 2x
Required per cent profit = (y - x)/x X 100
(2x - x)/x = 100 = 100%.
