Aptitude Placement Test for Engineering Students
Q. In a mixture of 90 L the ratio of acid and water is 2 : 1. If the ratio of acid and water is to be 1 : 2, then the amount of water (in litres) to be added to the mixture is?
a. 20L
b. 40L
c. 90L
d. 100L
No explanation is available for this question!
