Question

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​

Answer 1

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: