a house has 5 rooms each room has a bulb and a tube light if a bulb give light 5 hours and tubelight give 10 hours per day then how many total unit of be used tothose apparatus
tubelight -40w
bulb -100w
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The answer to this question is very short but I was instructed by a code to write at least 20 character for this. So here it is !!
4500 W
4500 W
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