exam
Maths Puzzle
Numerical Ability
How much pure water must be mixed with 4 pints of 90% developer to produce a mixture that is 19% developer?
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exam Other Question
Refer to a rectangle Find an expression that represents its perimeter
on top of the rectangle
___2x-1_
5
and on the side of the rectangle
__4___
3x+1
Perform the indicated operation. Simplify if possible
5x/x^2-7x+10 - 10/x^2-7x+10