exam Maths Puzzle Numerical Ability

The sum of two numbers is 210 and one is two fifths of the other. find the numbers.

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exam Other Question

how do i find out how tall all students are in a high school,which graph to use A solid cylinder has a height, h equal to its radius, r.
a) If the height is x, find the ratio of the volume, V, to the surface area, A. Simplify.
b) If the ratio found in part a