Question

7. Two electric bulbs of 100 W each are used for 8 hours daily. Find the cost of using them for 1 day if
the rate is 75 paise per unit.
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Answer 1

Answer:

1 Rs 10 paise

Explanation:

Electrical consumption = watts * time in hours/1000

                                       = 2 * 100 *8/1000

                                       =1.6 KWH ( Kilowatt hours)

money = 75 paise

           = 75 * 1.6

           = 110 paise

           = Rs. 1 , 10 paise