exam
Maths Puzzle
Numerical Ability
Solve. 10x - 1/4 = 9x + 3/8
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exam Other Question
nail polish remover is a mix of water & acetone. How much acetone must be combined with a solution that is 28% acetone to make 24 oz of a 58% solution?
6x-2y=2
9x-3y=1