1refgirator ,power=400w and used for 10 hr
2 fan ,power 80w and used for 12 hr
6 tubelight , power 18 w and used for 6 hr ..
Ek month ka bill btaoo aagar 1unit =3
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Answer: refrigerator :
Energy = p×t
= 400×10
= 4000watt hour
2 fan :
Energy = 80 ×12×2
1920watt hour
Tubelight :
Energy = 6×18×6
=648
Therefore total energy consumed =
648+4000+1920=6568 watt hour
Energy in kwh = 6568÷1000
=6.568kwh
Cost = 6.568×3
= 19.704
Explanation:
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