Please answer Q19 ......... Thank you
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Electricity consumed by bulb and light bulb
energy=250 x 5+6 x 4 x 4.5
=0.108+1.25
1.358 kilo watt hour in a day
Now electricity consumed in 31 days
1.358 x 31
=42.098 units
Have you cross checked if the options are correct ?
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