exam Maths Puzzle Numerical Ability

solve the following equation

5/x+2=4/x-3

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exam Other Question

A circular pond 26 yd in diameter is surrounded by a gravel path 2 yd wide. The path is to be replaced by a brick walk costing $50 per square yard. How much will the walk cost? 0.03c-0.1 = 1.4c+9