Question

One liter of milk was sold by a milkman which contains 80% pure milk. A housewife adds 200 ml of water to it and drinks 300 ml of the milk. How many liters of pure milk is left after this?

Answer 1

80% of 1L
800ml
that means the milk contains...
800ml-pure milk
200ml- water

now,

the women adds 200ml of water to it
so....
800ml - pure milk
400ml - water

she now drinks 300ml of milk
so....
650ml - pure milk
250ml - water

HOPE YOU GOT YOUR ANSWER......

Answer 2

ratio between milk and Water 800/200
add 200= 800/400=2/1
sub 300
by 200 ml of milk and 100 ml of water
finally milk is 600ml