exam Maths Puzzle Numerical Ability

Find three consecutive even integers such that the sum of the first and third exceeds one-half the second by 15.

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exam Other Question

The distance between the road of a bridge and the top part of its arch is 3m. If the arch of the bridge is given by the equation h(x)= 7x-x^2. Find the height of the bridge the volumes of two similar pyramids are 27 and 64. if the smaller has lateral area of 18, find the lateral area of the larger.