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1. 5 marksCalculate the electricity bill amount fora month of 31 days, if the followingdevices are used as specified.a) 3 bulbs of 40W for 6 hoursb) 5 tubelights of 40W for 6 hoursc) a refrigerator of 400W for 24 hoursgiven the rate of electricity is rs 2.50per unit88G |
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Answer» ........................m..... |
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