exam Maths Puzzle Numerical Ability

Word Problem:

If John cleans a house in 8 hours and Julie cleans a similar house in 6 hours, how long should it take them to clean another similar house working together?

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exam Other Question
factor each polynomial completely

2x^2y^2+6xy^2+2y solve using long division


(x^3+4x^2-3x-12) divided by (x^2-3)