In a mixture of 60 litres, the ratio of acid to base is 2 : 1. If this ratio is to be 1 : 2, then the quantity of base (in litres) to be further added is Choose one:
A) 20	B) 30	C) 40	D) 50	E) 60
Acid = 40 lts   Base = 20 lts   to make the ratio A:B = 1:2 ,   60 lts of base should be added   ANSW60R:60
<result>E</result>
In a mixture of 60 litres, the ratio of acid to base is 2 : 1. If this ratio is to be 1 : 2, then the quantity of base (in litres) to be further added is