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Answer:
Average - 82 units
More than average - Jan and Feb
Step-by-step explanation:
∵ Average = Sum of all terms / No. of terms
⇒ Average = (85 + 90 + 75 + 82 + 78) / 5
= 410 / 5
= 82 units
Months in which usage is above average - January(85) , February(90)
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