exam Maths Puzzle Numerical Ability

Simplify by combining like terms

2 sqrt (5x) + 5 sqrt (5x) - sqrt (5x)

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exam Other Question

A small firm produces both AM and AM/Fm car radios. The AM radios take 12h to produce, and the AM/FM radios take 20h. The production hours is limited to 300h per week. The plants c The volume of a circular cylinder is 250pi cm cube. What is the height of the cylinder?
Radius is 5