Question

Following electric appliances are used in a house. Calculate electricity bill for the month of

January 2021. Rate per unit is Rs 5.

a) 4 Electric bulbs of 50 W used for 4 hours per day.

b) 1 Geyser of 1.5 kW 1 hr per day
answer fast I will mark u as brainlist answer ​

Answer 1

Answer:

a) 4 Electric bulbs of 50 W used for 4 hours per day

Answer 2

Answer:

It will be 345 Rs.

Explanation:

4 electric bulbs of 50 watts = 4 electric bulbe of 0.050 kilo watts.

Per unit is kw per hour calculated monthly which is 5 Rs.

4 * 0.05 = 0.2 kw.

They are used for four hours

0.2 * 4 = 0.8

So for a month it will be

0.8 * 30 = 24 kw.

So the bill for bulbs will be

24 * 5 = 120.

The geyser is 1.5 kw and used for 1 hour.

1.5 * 1 = 1.5

In a month it will be

1.5 * 30 = 45.

So the bill for geyser will be

45 * 5 = 225.

So both added will give 345 rs