Question

22. A 100 W electric bulb is lighted for 3h daily and four 60 W electric bulbs are lighted
for 2h daily. Calculate the units of energy consumed in a month of 30 days.​

Answer 1

Explanation:

Answer is in the pic..

plz find the attachment

Answer 2

Answer:

23.4 units

Explanation:

1kW=1000W

so,100W=0.1kW

1unit=1kWh

0.1×3=0.3units

In 30 days÷

0.3×30=9 units

now for 4 , 60W bulbs÷

4×60/1000=0.24 kW

0.24×2=0.48 units

In 30 days÷

0.48×30=14.4 units

now adding ÷

14.4+9=23.4 units