Shreya logged her weekly running distance for 10 weeks; the mean was 18 km. When she leaves out the highest and the lowest week, the other 8 weeks average 17.5 km. If her highest week was three times her lowest, what was her highest weekly distance?

Question

Accepted Answer

30 km. Highest + lowest =10×18-8×17.5=180-140=40. With h=3l: 4l=40 l=10, h=30 km. (10 km is the lowest week.)

Shreya logged her weekly running distance for 10 weeks; the mean was 18 km. When she leaves out the highest and the lowest week, the other 8 weeks average 17.5 km. If her highest week was three times her lowest, what was her highest weekly distance?

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