exam Maths Puzzle Numerical Ability

How do you solve the square root of 18 times the square root of 3 over 10 with the 3 over 10 looking like a fraction?

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exam Other Question

A driver gear with 75 teeth running at 32 rpm (revolutions per minute) will transfer what rpm to a driven gear with 24 teeth? At a school play, 750 tickets were sold. Each adult paid $0.75 admission, and each student, $0.50. How many adults attended, if the receipts were $437.50?