Question

You have two containers . One with pure 1000ml milk and another one which has 900ml of milk with 100ml water mixed in it which properties of liquid would you use to find out which container has pure milk .​

Answer 1

Answer:

Let the initial quantity of milk =10xlitres,

For each 1 litre, 200 ml of water is added, so after adding water, quantity of mixture become =12x litres.

Now 6litres of mixture is sold, and 10 litres of milk is added.

So remaining quantity is (12x−6+10)=(12x+4)

In this final quantity, milk =10x−(

12x×6

10x

)+10=(10x+5)

So,

(12x+4)

(10x+5)

=

(25+3)

25

Solving, we get x=2

So initial quantity of milk =10x=20 litres