Question

An Electric Lamp is Marked 60W 230V. The Cost of a 1kwh of Energy is Rs. 1.25. The Cost of using this lamp 8 hrs a day for 30 days is:-

A) RS 10
B) RS 16
C) RS 18
D) RS 20

Answer 1

HEY !! HERE IS YOUR ANSWER 》》

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Answer 2

The answer is ;

The Cost of using this lamp 8 hrs a day for 30 days is. ₹18

According to question, P =60w which is 60/1000= 0.06kw.

Time consumed - 8hrs x 30 days=240hrs

Total Power consumed= 240hrs x 0.06kw

= 14.4 kwh

Cost of 1 kwh = ₹1.25

Cost of 14.4 kwh = ₹1.25 x 14.4 = ₹18

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