Question

67.In a mixture 60 litres, the ratio of milk and water 2:1. If this ratio is to be 1:2, then the quantity of water to be further added is:

• A. (a) 20 litres
• B. (b) 30 litres
• C. (c) 40 litres
• D. (d) 60 litres

Answer 1

The correct option is D (d) 60 litres

Ans 67 D
Explanation
Quantity of milk =(60*2/3)litres = 40 litres
Quantity of water in it = (60 – 40) litres = 20 litres
New ratio = 1:2
Let quantity of water to be added further be x litres
Then, milk : water = ((40/20)+x)
Now,
((40/20) + x) = 1/2
20+x=80
x = 60
Quantity of water to be added = 60 litres