exam Maths Puzzle Numerical Ability

If y varies directly as x and y=14 when x=8. Find x when y=21.

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exam Other Question

The chairlift at a ski resort has a vertical rise of 3,100 feet. If the length of the ride is 1.4 miles, what is the angle the chairlift makes with the horizontal (to the nearest tenth of a degree)? Each side of a regular hexagon has length 10. Find the area of the hexagon.
(Hint: Divide the Hexagon into triangles)

The answer in the answer key is 150 square roots of 3.