Question

23) In a mixture of 90 litres, the ratio
of milk and water is 2:1. If this ratio is
to be 1:2, then the quantity of water
to be further added is :
O (a) 20 litres
0 (b) 70 litres
O
(c) 90 litres
O
(d) 40 litres​

Answer 1

Answer:

answer is (c)

Step-by-step explanation:

volume of mixture = 90 litres

ratio of milk and water is 2:1

then volume of milk is (2/3 )×90=60 litre

and volume of water = (1/3)×90=30 litre

Now we want make the ratio of milk and water to be 1:2

that is 1 litre milk mixed with 2 litre water

then 60 litre milk should mixed with 120 litre of water

but their is already 30 litre of water

so water required = 120-30= 90 litre