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In a cub with earth, there are 17 earthworms, of which 33 % are pregnant. They will have babies every Wednesday, one per pregnant earthworm.

How many earthworms will there be after 7 weeks?


When will there be 999 earthworms?


 3 birds eat 9 earthworms in 10 minutes, 6 hours a day. Will they be done before 6 am Wednesday, if they begin eating at Sunday 6 am?

Posted in Group5.

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