A milkman bought 70 liters of milk for Rs. 630 and added 5 liters of water. If he sells it at Rs. 9.00 per liter, his profit percent is :
A milkman bought 70 liters of milk for Rs. 630 and added 5 liters of water. If he sells it at Rs. 9.00 per liter, his profit percent is :
[A]
[B]
[C]
[D]
C.P of 75 liters of mixtures of milk and water = Rs. 630.
S.P of 75 liters of mixtures of milk and waete = 
Gain %= 
Hence option [D] is the right answer.