The ratio of the cost price and the selling price is 4:5. The profit percent is:	Choose the most appropriate option:	A) 10%	B) 20%	C) 25%	D) 30%	E) 40%
Let C.P. = Rs. 4x. Then, S.P. = Rs. 5x   Gain = (5x - 4x) = Rs. x   Gain % = (x * 100)/ 4x = 25%.   ANSWER:25%
<result>C</result>
The ratio of the cost price and the selling price is 4:5. The profit percent is: