exam
Maths Puzzle
Numerical Ability
(2x^2-4x+2)/(x-1)
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exam Other Question
please show me step by step how this one is solved
1/x-2 = 3/x-3
Lost again on a worksheet. The question is:
A vat contains 100 gallons of a 50% brine solution. What is the greatest amount of water that can be added if the salt content cannot drop below 25%.