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A light bulb consumes 1800 watt-hours per day. How long does it take to consume 8100 watt-hours?
A light bulb consumes 1800 watt-hours per day. How long does it take to consume 8100 watt-hours?
A light bulb consumes 1800 watt-hours per day. How long does it take to consume 8100 watt-hours?