exam Maths Puzzle Numerical Ability

Word problem.

The volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box.

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exam Other Question

If one half a number is subtracted from five-sixths of the number, the difference is 6. Find the number!

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ac Show the difference between a four-digit number and its reverse is divisible by 9