There are 10 bulbs of 100W, 5 bulbs of 60W and a heater of 3KW in a house. If the lamps are illuminated or 6 hours and the heater is used for 2 hours daily, how many units of electric energy will be used in the month of January in that house? [P-2.3, IUT : 2021-22]

A 325.5 KWh

B 455.8 KWh

C 527.8 KWh

D 427.8 KWh

Solution

Correct Answer: Option D

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