exam Maths Puzzle Numerical Ability

A cement pipe has an outside diameter of 11 1/4 in.and a wall thickness of 1 1/8 in. What is the inside diameter of the pipe?

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exam Other Question

Find all numbers for which the rational expression is undefined. Simplify your answer. Use an integer or a fraction. Use a comma to separate answers as needed. the width of a rectangle is 3 less than the length. the area is 10. find the dimensions of the rectangle.