How many litres of pure acid are there in 12 litres of a 40% solution  Select the correct option.
A) 3.6	B) 4.8	C) 3.5	D) 2.3	E) 4.4

Rationale: explanation : question of this type looks a bit typical , but it is too simple , as below . . . it will be 12 * 40 / 100 = 4.8 answer : option b
Answer: B