### Brain Teasers

# Swimmer

If, with the help of the current, a boy can swim from his boat to a jetty in 10 minutes (which is just half the time it would take him to swim that distance in still water) how long will it take him to swim back from the jetty to his boat, against the current ?

### Answer

He will never make it. Since, in effect, the favourable current doubles the natural speed of boy, its rate must be the same as that at which he normally swims. Therefore, when swimming against it he will make no headway whatsoever.Hide Answer Show Answer

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## Comments

The boat, on the other hand, will smash up against

the jetty in another 10 minutes, so I think the answer is

10 minutes (you didn't say the boat was anchored, did you?).

I also think this one belongs in "Math" (or perhaps "Trick") rather

than Logic.

the jetty in another 10 minutes, so I think the answer is

10 minutes (you didn't say the boat was anchored, did you?).

I also think this one belongs in "Math" (or perhaps "Trick") rather

than Logic.

huh?? I don't get this one at all.

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