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Question

There are 5 tube-lights each of 40 W in a house. These are used on an average for 5 hrs/day. In addition, there is an immersion heater of 1500 W used on an average for 1 hr/day. The number of units of electricity that are consumed in a month of 30 days is:

A
25 units
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B
50 units
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C
75 units
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D
100 units
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