Question

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 1

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

Answer 2

Answer:

315 rupees is correct answer