1.

an electric motor of 1.5 kilowatt and two 500 watt cooler each operate for 5 hour a day it energy cost rupees 3.60 per kilowatt hours calculate the weekly bill

Answer»

Answer:

315rs

Explanation:

I)Given

1.5kilowatt = 1.5unit/hr

Two 500 watts = 1kilowatt = 1unit/hr

Then, for 5 HOURS it is :-

  • 5 x (1.5+1)
  • 5 (2.5)
  • 12.5 units.

II)

if 3.60rs for 1unit or 1kilowatt. Then,for 12.5 units is

  • 12.5 x 3.6
  • 45rs.

III)

if 45rs is the amount for ONE day. Then for a week it is :-

  • 45 x 7
  • 315rs

Hope it HELPS



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