book Maths Puzzle Numerical Ability

Two cars leave towns 230 miles apart at the same time, traveling directly towards one another. One Car travels 15 m.p.h. slower than the other. They pass one another 2 hours late

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Don has 80 coins. He has 4 times as many dimes as nickels and the remaining are pennies. With a single variable, express the number. The volume of a cube is given by V = s3. Find the length of a side of a cube if the Volume is 729 cm3.