Question by An Duong - Discuss with MathYouLike

An Duong moderators

27/02/2018 at 07:27

A 200-pound man and his two sons each weighing 100 pounds want to cross a river, If they have only one boat and it can safely carry only 200 pounds, how can they cross the river?

List of answers

Anna 27/02/2018 at 08:26

2 sons x and y cross; x returns.

Father crosses; y returns.

Two sons cross.
Lê Quốc Trần Anh Coordinator 28/02/2018 at 15:27
In Anna's second line: father cross, x or y returns
¤« 04/03/2018 at 14:49

2 sons x and y cross; x returns.

Father crosses; y returns.

Two sons cross.

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