Two 220 V, 60 W 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 -; 1) Rs. 10.50; 2) Rs. 38.50; 3) Rs. 77.00; 4) Rs. 21.00
omjoshi3029:
answer is 2
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Answered by
4
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Energy consumed in 10 days
So, 2) is the correct option.
Energy consumed in 10 days
So, 2) is the correct option.
Answered by
1
->>
Two 220 V, 60 W 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 -;
1) Rs. 10.50;
2) Rs. 38.50;
3) Rs. 77.00;
4) Rs. 21.00
->>
kwh
Energy consumed in 10 days
11×10 kwh = 110 kwh /unit
Rs 3.5 rs /v
110×3.5 = 38.5
Option 2 is Correct
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