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In a large building , there are 15 bulbs of 40 W , 5 bulbs of 100 W , 5 fans of 80 W and 1 heater of 1kW .The voltage of the electric mains is 220 V .The minimum capacity of the main fuse of the building will be :

$(a)\;8\;A\qquad(b)\;10\;A\qquad(c)\;12\;A\qquad(d)\;14\;A$

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