Answers

2016-04-21T20:06:33+05:30
Given,
Power = 120W = 0.120kW
Time = 6 hrs.

Energy = 0.120 X 6 = 0.72 units
Money = 0.72 X 2.50 = rs.18
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2016-04-22T12:08:59+05:30
Given,
Power = 120W i.e.  0.120kW

Time = 6 hrs.

Energy = Pt
⇒ Energy = 0.120 X 6 
⇒ Energy = 0.72 units.

Money req. = 0.72* 2.50 
                    = 1.8 Rs.


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