exam Maths Puzzle Numerical Ability

joe can paint all the rooms of a house in 20 hours it takes ross 60 hours to do the same thing. How long would it iake them if they worked together?

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exam Other Question

Solve each compound inequality. Write interval notation.

x - 3 > 7 or 3 - x > 2 If a figure has a base of 3m x 7m for a right solid which is 8m high, calculate the surface area of the solid.