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Maths Puzzle
Numerical Ability
The diagonal of a square television screen measures 18 inches. What is the length of the sides?
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In this problem you are to factor out the expression.
3x^2(r + 3s) -6y^2(r + 3s) I can not figure out how this is the answer:
3(r + 3s)(x^2-2y^2)
Please show the steps.
How do I work out what percentage one figure is of another. i.e. If I have an overall figure (B) of 134,789 and part of this is A which equals 27,987 what percentge is A of B?
Many thanks