Question

In a house hold the following devices are used for specific numbers of hours. Calculate the energy consume in the month of February if :-
1) 2 bulbs of 40 watts are used for 8 hours.
2) 2 bulbs of 60 watts is used for 2 hours.
3) A heater of 1500 watts is used for 1/2 hours (i.e. 30 minutes).
If the cost of first 200 units is 2.50 rupees and the rest of the cost per unit is 3.5 rupees/unit. Find the amount to be paid

Answer 1

bro is 2 bulbs of 40 watt. Each or together its 40 watt.if it is together than my answer may help