exam Maths Puzzle Numerical Ability

The roots of the equation x^2-4x=b are 7 and a. Find the value of a.

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exam Other Question

if 160 kilograms of an alloy contain 76.8 kilograms of copper, what percent of th alloy is copper? a triangle has an area a=1/2bh. if the area o a triangle is 6sq. cm , find the solution set of all possible whole number values for b & h.