Question

solve my question plz....​

Answer 1

I think its 288...
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If it is right plz follow me..

Answer 2

Hello user !

Answer :-Option (C) 288

Given :

8 bulbs power = 40W each.

Therefore, Power of 8 bulbs = 320 W

Time for which it works = 5 hours.

Therefore , Energy consumed = Power * Time

= 320 * 5

= 1600Wh

Energy consumed = 1600 What = 1.6kWh

And , second ..

4 bulbs working at a power of 80 W each

Power of 4 bulbs = 4 * 80

=320 W

Time for which it works = 10 hours.

Therefore, Energy consumed= 10 *320

= 3200Wh

Energy consumed = 3200Wh= 3.2kWh

Total energy consumed =( 3.2 +1.6)kWh

= 4.8 kWh

Electricity bill = 4.8*2*30

Rs. 288