exam
Maths Puzzle
Numerical Ability
what is the answer to (2a-17a+a*a*a+6)/(a-3)
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exam Other Question
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?
Evaluate: [(81/16)^(1/4)-(1/3)^0]^-2