A liter of milk sold by a milkman contains milk and water in the ratio 4 : 1. A house wife adds 100 ml of water and then uses 220 ml of the mixture to make curd. How much of the pure milk is she left with?(CTS COMPANY)

A liter of milk sold by a milkman contains milk and water in the ratio

1.	A liter of milk sold by a milkman contains milk and water in the ratio 4 : 1. A house wife adds 100 ml of water and then uses 220 ml of the mixture to make curd. How much of the pure milk is she left with?(CTS COMPANY)
A.	560 ml
B.	640 ml
C.	800 ml
D.	760 ml
Answer» C. 800 ml