exam Maths Puzzle Numerical Ability

six less than twice a number is 16.

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exam Other Question

simplify

3 times the square root of 3/13 - 7 times the square root of 13/3 A 6-passenger plane cruises at 180 mph in calm air. If the plane files 7 miles with the wind in the same smount of time as it flies 5 miles against the wind, then what is the wind speed?