exam Maths Puzzle Numerical Ability

A list of five positive integers has mean 12 and range 18. The mode and median are both 8. How many different values are possible for the second largest element of the list?

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exam Other Question

write an equation in slope-intercept form for the line that satisfies each set of conditions.

passes through (8,-6), perpendicular to the graph of 2x-y=4 What is the locus of all points in a plane that are less than 4 inches from a point A?

1. interior of circle A with a radius 4 inches
2. circle A with radius 4
3. line segment 4 inches long
4. line segment less than 4 inches long