Question

calculate the electricity bill amount for a month of 30days 4bulbs of 50watts for 6hours

Answer 1

4x50x30x6=36000ws=36kwhr(since 1000watt=1kw)

Answer 2

Power consumed collectively by four bulbs= 50x4 = 200W or 0.2kW hour .

In 6 hours: 0.2×6

= 1.2kwh

In 30 days : 1.2×30

= 36kWh .

Total power consumed in 30 days = 36kWh , now multiply 36 with th rate of electricity given in question.

Note: your question is incomplete!

Thanks.