Question

an immersion rod of 1500watt is used to heat up water for 3 hours daily. if the cost of 1 unit of electrical energy is rupees 5.00. then, what would be the cost of consumed electrical energy in 30 days?​

Answer 1

solution

given

100 watt = 1unit

1500watt =15unit

now

in 1 day the cost of electrical energy is =15 ×5.00

= rs 75

in 30 day the cost of electrical energy is =15 ×5.oo×30

= rs 2250