Question

Calculate the monthly cost of running a 400 W refrigerator. Assume the refrigerator
is plugged in 24 hours a day for 30 days. The rate of electricity is 12¢/kWh. Use
GRASP

Answer 1

Answer:

Depends on the wattage and cost per KWH. A 100W incandescnet will use 2.4 KWH of energy in 24 hours and at a cost of 10 cents per KWH it will have cost 24 cents to run.  30×24 cents =720 cents

Explanation:

Answer 2

Answer:

ans :- Rs. 3456

Explanation:

Given,

Power = 400 W

Time = 24 hours / day

Days = 30 days

Firstly, we will find the total energy consumed by refrigerator in 30 days

Energy consumed = (Watt × Hours × No. of days) /1000

Energy consumed = (400 × 24 × 30)/1000

Energy consumed = 288000/1000

Energy consumed = 288 kWh (unit)

Now,

cost of energy consumed = Rate × kWh (unit)

Cost of energy consumed = 12 ¢ × 288

Cost of energy consumed = 3456 ¢

Hope it will help you

Plz mark me as brainliest