Today's Challenge

Two adults and two children need to cross a river in a rowing boat.

Can you determine how to get everyone across, and how many crossings are needed, given the following information?

  • All adults weigh the same
  • Each child weighs half as much as an adult
  • The boat can only carry the weight of one adult
  • The boat must have someone in it to row it!
  • What if there were 4 adults and 2 children?

    Can you find a formula to determine this for any number of adults(range 2 to 1000's!) and two children?