Question

Calculate the electricity bill amount for a month of April if 4 bulbs of 40 W for 5 hrs, 4 tube lights of 60 watt for 5 hrs , a tv of 100 watt for 6 hrs , a washing machine of 400 watt for 3 hrs are used per day the cost per unit is rs. 1.80

Answer 1

Total bill =(4*40*5+60*5+100*6+400*3)*1.8/1000
=(800+300+600+1200)*1.8/1000
=2900*1.8/1000
=2.9*1.8
=₹5.22