How many litres of pure acid are there in 4 litres of a 35% solution Choices:
A) 1.5  B) 1.6  C) 1.7  D) 1.8  E) 1.4

Rationale: explanation : question of this type looks a bit typical , but it is too simple , as below . . . it will be 8 * 20 / 100 = 1.4 answer : option e
Answer: E