1.

A 400 W refrigerator operates for 16 h per day. Calculate the cost to operate it for 30 days at ₹3.40 per kWh.

Answer»

Solution :Energy consumed `=("WATT"XX"hours"xx"No. of days")/(100)`
`= (400xx16xx30)/(100) = 192 kWh` (UNIT)
COST of energy consumed = RATE `xx` kWh


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