book Maths Puzzle Numerical Ability

Side of a cube.

Find the length of the side of a cubeic box whose volume is 80 cubic feet.

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book Other Question

A coffee merchant has coffee beans that sell for $9 per
pound and $12 per pound. The two types are to be mixed to create 100 lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture? solve the questions give below by factorization
(1)3x2+x=1 (2)4x2+9=12x (3)5x(x+2)=4(3x=1) (4)2x+7=x2 (5)x2-3x=3x=7 (6)3(4x-1)=x2