Question

(C) If four bulbs of 50 W are on for 6 hours, 3 tube lights of 40 watt for 8 hours, a TV of 100 watt for
6 hours, a refrigerator 300 watt for 24 hours are used. Calculate the electricity bill amount for a
month of 30 days. The cost per unit is rupees 2.50.​

Answer 1

Answer:

Rupees 747

Explanation:

E= P*t

Energy consumed by each appliance in 1 day

energy for 4 bulbs =1.2 units

energy for 3 tubelights=0.96 units

energy for 1 tv =0.6 units

energy for 1  refrigerator=7.2 units

Total energy= 9.96 units

energy for 30 days =298.8

cost =2.5*298.8

       =747