CTET Solved Paper - UPTET Feburary 2016
- Option : C
- Explanation : Plague is a bacterial infectious disease that is caused by Yersinia pestis.
68. 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%.
