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A 2.5kW heater is in use for 7.5 hrs daily and energy costs 7.1p per unit. The total cost for 28 days is?

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A 2.5kW heater is in use for 7.5 hrs daily and energy costs 7.1p per unit. The total cost for 28 days is?

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  1. energy costs 7,1p/kWh

    2,5kW*7,5h*28days=525kWh

    525kWh*7,1p=3727,5p

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