exam Maths Puzzle Numerical Ability

Take any number (except for 1). Square that number and then subtract one. Divide by one less than your original number. Now subtract your original number. State whether your numb

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How do you solve y^2=-3x The product of the ages of David's children is the square of the sum of their ages. David has less than eight children. None of his children have the same age. None of his child