An electric lamp is marked 60 W , 230 V . The cost of 1 kilowatt hour of power is Rs . 1.25. The cost of using this lamp for 8 h

An electric lamp is marked 60 W , 230 V . The cost of 1 kilowatt hour of power is Rs . 1.25. The cost of using this lamp for 8 hours is
A. Rs. `1.20`
B. Rs. `4.00`
C. Rs. `0.25`
D. Rs. `0.60`

An electric lamp is marked 60 W , 230 V . The cost of 1 kilowatt hour of power is Rs . 1.25. The cost of using this lamp for 8 hours is

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