Question

An electric lamp of 100w is used daily for 5 hours daily . Calculate the number of units consumed in amonth of 30 days

Answer 1

Given:100Watts (change into kilowatts)

100÷1000=0.1

=0.1÷5=0.02

=0.02×30

=0.6

Answer 2

Answer: convert 100 w to kw

Explanation: 100 w = 0.1kw

energy for one day = 0.1 x 5

                                     0.5 kwh

energy for 30  days = 0.5 x 30

                                     15 kwh

                         or

                                     15 units