Question

In a house, four 60 W electric bulbs are lighted for 2 hours and two 100 W bulbs are lighted for 4

hours every day. Calculate the energy consumed in the house for 30 days​

Answer 1

Answer:

38.4 kwh

Explanation:

To calculate the energy consumed in house ---

No. of appliances × used in hours × Power rating × No. of days

____________________________________________

1000

First case:

4 × 2 × 60 × 30

= ___________ kwh

1000

8×60×30

= _______ kwh

1000

8 × 1800

= ______ kwh

1000

14400

= _____ kwh = 14.4 kwh

1000

Second case :

2 × 4 × 100 × 30

= _____________ kwh

1000

800 × 30

= _______ kwh

1000

24000

= ______ kwh

1000

= 24 kwh

Now, Total energy consumption =

14.4kwh + 24 kwh

= 38.4 kwh