exam Maths Puzzle Numerical Ability

If there is a plot of land that is 24 by 30. And surrounding the land is a walkway that has an area of 247 ft. sq. what is the width of the walkway.

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t/3 - 3/t = 0 Wind-Chill. A combination of cold and wind makes a person feel colder than the actual temperature. The table shows what temperatures of 35 degrees F and 15 degrees F feel like wh