exam Maths Puzzle Numerical Ability

You have 100 square meters of material. Which will hold more volume, a sphere or a cube made from that much material? How much more? Thank you Nick.

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exam Other Question

Desa invested a certain amount of money at 4% interest and $1500 more than that amount at 7%. Her total yearly interest was $435. How much did she invest at each rate? simplify: 5-2[3x-7(2-x)-5x]