birdwatcher (birdwatcher) wrote,
birdwatcher
birdwatcher

Математика интервью

Дети принесли из Дворца пионеров:
6. An apple is floating in the pond. Its density is such that 1/5 of it is above water, and 4/5 is in the water. A fish nibbles at the immersed part of the apple at a rate of 60 g/min, while a bird is picking at the part that is in the air at a rate of 120 g/min. What proportion of the apple will be eaten by the bird and what by the fish?
Subscribe

  • Post a new comment

    Error

    default userpic
    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.
    Help
  • 11 comments