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Answer to Question #22015 in Electric Circuits for somnath chatterjee

Question #22015
two 220V, 60W bulbs are used for 5 hours a day for 10 days, if each unit (1 kilowatt hour) costs Rs 3.50, find the total expense for it? please solve with explanation

a) Rs 10.50 b) Rs 21 c) rs 38.50 d)rs 77
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