The Bridge
Published: Nov 30, 1999
Riddle: There are four people trying to cross a bridge. They each take a different amount of time to cross: 1 minute ; 2 minutes ; 5 minutes ; and 10 minutes. The bridge can only hold 2 people at a time, so they must cross the bridge in pairs. The two people paired together must travel at the speed of the slower person (i.e. 5 min. & 10 min. person paired takes 10 min. total to go across). After two people have crossed, one person must return to the other side to give the ‘all clear.’ (i.e. the 5 min. person would return, taking 5 min, and bringing the total time to 15). Get all four people across in 17 min.
Answer: 1,2,5,10
1&2 go = 2min.
1 min returns = 3 total
1,5,10 (Bridge) 2
5& 10 go = 13 total
1 (Bridge) 2,5,10
2 returns = 15 min
1,2 (Bridge) 5,10
1,2 go = 17
1&2 go = 2min.
1 min returns = 3 total
1,5,10 (Bridge) 2
5& 10 go = 13 total
1 (Bridge) 2,5,10
2 returns = 15 min
1,2 (Bridge) 5,10
1,2 go = 17
April Fools Day Riddles are hand picked April Fools Day Riddles for use by teachers in the classroom and for home school lessons. This april fools day riddles quiz provides the option to be downloaded as a PDF or printable directly from the April Fools Day Riddles quiz page.
Mothers Day Riddles are hand picked Mothers Day Riddles for use by teachers in the classroom and for home school lessons. This mothers day riddles quiz provides the option to be downloaded as a PDF or printable directly from the Mothers Day Riddles quiz page.
Fathers Day Riddles are hand picked Fathers Day Riddles for use by teachers in the classroom and for home school lessons. This fathers day riddles quiz provides the option to be downloaded as a PDF or printable directly from the Fathers Day Riddles quiz page.
