Question

6. The monthly electricity bill in a hostel for
lighting 22 bulbs each of 100 watt for 6 hours
daily is 3520. Then the amount of the bill when
30 bulbs each of 100 watt are lighted for 8 hours
daily is
(a) 3200
(b) 4800
(c) 5800
(d) 6400​

Answer 1

Answer:

ur answer is c

Step-by-step explanation:

hope it's helps you to

Answer 2

Step-by-step explanation:

The cost of lighting 22 bulbs for 6 hours daily =Rs.3520

∴ The cost of lighting 1 bulb for 1 hour daily =Rs.

22×6

3520

∴ The cost of lighting 30 bulbs for 8 hours daily =Rs.

22×6

3520×30×8

=Rs.6400.