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A 100 W bulb runs for 10 hours a day. How many units of energy (kWh) does it con

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1. A 100 W bulb runs for 10 hours a day. How many units of energy (kWh) does it consume over 30 days?

1 unit

10 units

30 units

300 units

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Daily energy use is 100 W × 10 h = 1000 Wh = 1 unit. Over 30 days, that totals 30 units.

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