An electric lamp is marked 60 W, 230 V. The cost of kilowatt hour of power is Rs 1.25. The cost of using this lamp 8 h a day for 30 days is |
|||||||

a) |
Rs 10 |
b) |
Rs 16 |
c) |
Rs 18 |
d) |
Rs 20 |

An electric lamp is marked 60 W, 230 V. The cost of kilowatt hour of power is Rs 1.25. The cost of using this lamp 8 h a day for 30 days is |
|||||||

a) |
Rs 10 |
b) |
Rs 16 |
c) |
Rs 18 |
d) |
Rs 20 |

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