exam Maths Puzzle Numerical Ability

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(4)/(m^2-7)=1

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exam Other Question

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z+u/zu^2+4z+u/z^2u

7w-42/6w

y/7-7/y=0 Given a three-digit number, interchange the unit digit and the hundreds digit. The product of the original number and the new number is 65,125. What is the smaller three-digit fact