Answer :
4320
we first need to know how much watt hours are used in 12 hours which we can find by taking 960/2=480 now we just need to take 960*4=3840 and add 480 which gives us our answer of 4320 watt hours.
we first need to know how much watt hours are used in 12 hours which we can find by taking 960/2=480 now we just need to take 960*4=3840 and add 480 which gives us our answer of 4320 watt hours.