An electric lamp is marked 60 W, 230 V. The cost of a 1 kWh of energy – McqOptions

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1.	An electric lamp is marked 60 W, 230 V. The cost of a 1 kWh of energy is Rs. 1.25. The cost of using this lamp 8 hrs a day for 30 day is [Kerala (Med.) 2002]
A.	Rs. 10
B.	Rs. 16
C.	Rs. 18
D.	Rs. 20
Answer» D. Rs. 20

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