Question

Solve the MCQ with correct
explanation/solution..?
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A house is fitted with 5 tubes each of 40 W. If all the tubes are lighted for 20 hours and if the cost of
electrical unit is Rs 0.50, the total cost of electricity consumed is..
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Options: 1. Rs.20
2. Rs. 4
3. Rs. 5
4. Rs. 28
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Plzz explain the answer for the correct option...?

Answer 1

Hey its answer is Rs. 2 ,


Thanks.