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The electric company charges Tk. 0.30 per kilowatt-hour (KWH). Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 in June. What was his average cost of electricity for the 3 months?

The electric company charges Tk. 0.30 per kilowatt-hour (KWH). Rahim used 2800 KWH in April, 3200 KWH in May, and 3600 in June. What was his average cost of electricity for the 3 months? Correct Answer Tk. 72

Total Electricity cost for the three months= 2800*0.30+3200*0.30+3600*0.30=2880tkAverage cost of electricity for the three months=2880/3=960tkso the answer is none of these from the options

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