exam Maths Puzzle Numerical Ability

Find the number of terms and the sum of the series 7+17+27+...+107

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1. A hexagonal right prism has a volume of 500 cubic inches. If the base is a regular hexagon with a side 4 inches. What is the altitude of the prism? Round off your answer to two How much of a 35% alcohol solution shoud be mixed with 2 liters of a 60% alcohol solution to produce a 50% alcohol solution?