exam
Maths Puzzle
Numerical Ability
Mix a solution that is 70% acid with a solution that is 90% water to make 9L of a solution that is 30% acid. How much of each solution should you use?
Read Solution (Total 0)
exam Other Question
Find K so that the vectors [4,-3] and [k,-6] (a) point in the same direction
(b) are perpendicular
what is the answer to (2a-17a+a*a*a+6)/(a-3)