exam Maths Puzzle Numerical Ability

A ramp on a freeway is circular in shape. If the radius is 54 meters and the central angle is 210 degrees, what is the length of the ramp? Give answer to 2 decimal places.

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exam Other Question

Assume 15 people are in a pool of contestants. A panel of 3 contestants will be selected. What is the probability of a member of the pool of 15 being selected on the panel of 3? Use the equation of the regression line to predict y when x = 20.

x 5 8 6 10 12 9
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y 18 20 15 25 30 25