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30 January, 14:30

The population of locusts in a certain swarm doubles every two hours. If 4 hours ago there were 1,000 locusts in the swarm, in approximately how many hours will the swarm population exceed 250,000 locusts? A. 6B. 8C. 10D. 12E. 14

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  1. 30 January, 17:12
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    4 hours ago = 1,000

    2 hours ago = 2,000

    Now = 4,000

    In 2 hours = 8,000

    In 4 hours = 16,000

    In 6 hours = 32,000

    In 8 hours = 64,000

    In 10 hours = 128,000

    In 12 hours = 256,000

    The answer would be D. 12 hours.
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