How many litres of pure acid are there in 5 litres of a 30% solution Choose the correct choice from the following choices
A) 1.5  B) 1.6  C) 1.7  D) 1.8  E) 1.9

Rationale: explanation : question of this type looks a bit typical , but it is too simple , as below . . . it will be 5 * 30 / 100 = 1.5 answer : option a
Answer: A