exam Maths Puzzle Numerical Ability

Find length and width of each rectangle

Perimeter=44ft. The length is ten ten times the width.

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exam Other Question

If you need to mix 5L of fluid containing 25%alcohol and you have one that
cotains 50%alcohol and another with 15%alcohol how much of each do you need
to mix. factoring a quadratic with leading coefficient greater than one
w^2-7w+12