exam Maths Puzzle Numerical Ability

A rectangle has an area of 330m^2. One side is 7m longer than the other. What are the dimensions of the rectangle?

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exam Other Question

A, B and C can finish a job in 6 days. If B and C work together, the job will take 9 days; if A and C work together it will take 8 days. In how many days can each man working alone do the job? how do you set up this problem i know the math but i dont know how to set it up in the right order?