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
SHARE
Share:
The Bridge Riddle Meme.
The Bridge Riddle Meme.
Easter Riddles are hand picked Easter Riddles for use by teachers in the classroom and for home school lessons. This easter riddles quiz provides the option to be downloaded as a PDF or printable directly from the Easter Riddles quiz page.
St Patricks Day Riddles are hand picked St Patricks Day Riddles for use by teachers in the classroom and for home school lessons. This st patricks day riddles quiz provides the option to be downloaded as a PDF or printable directly from the St Patricks Day Riddles quiz page.
Valentines Riddles are hand picked Valentines Riddles for use by teachers in the classroom and for home school lessons. This valentines riddles quiz provides the option to be downloaded as a PDF or printable directly from the Valentines Riddles quiz page.