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River Crossing - Cross the river in less than 30 minutes

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River Crossing - Cross the river in less than 30 minutes

River Crossing - Cross the river in less than 30 minutes

A family must catch a train on the other side of a river.
The train is leaving in 30 minutes.
They have been joined by their friend, a cop,
who want to help them cross the river.

Rules:
1) The cop can cross the river in 1 minute.
2) Father can cross in 3 minutes.
3) Mother can cross in 6 minutes.
4) Daughter can cross in 8 minutes.
5) Son can cross in 12 minutes.
6) If two people are on the raft, they will cross the river in the time that it would take for the slower person to cross alone.

Can you help the family catch their train?

Click here for Answer

Can you solve the puzzle by crossing the river in 29 minutes.
Link to Solution with 29 minutes:
River Crossing Puzzle : Cross River in less than 30 minutes