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Question
The daily rainfall for each day of a week in a certain city is given in millimetres. Find the average rainfall during the week.
9, 11, 8, 20, 10, 16, 12
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Solution
Average rainfall =`"Sum of the total rainfall"/"Total number of days"`
= `(9+11+8+20+10+16+12)/7`
= `86/7`
= 12.285 ≅ 12.29
= 12.29 mm
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