exam
Maths Puzzle
Numerical Ability
2% milk contains 2% Butterfat. Whipped cream contains 9% Butterfat.How much whipped cream and 2% milk should be mixed to obtain 35 gallons of milk with 4% butterfat?
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Sylvia somersaults from a 3 metre springboard. Her height in metres above the water t seconds after she leaves the board is given by the formula h=-4.9t^2+8.8t+3.How lon
I am not sure how to do this problem. Thanks for your help!
Problem:
[((x+1 / x-1)+1) / ((x+1 / x-1)-1)]^5
What I have come up with:
[((x + 1/x -1)+1)*((x-1/x+1)-1)]^5
Find