# Puzzles – 19 ## 8 thoughts on “Puzzles – 19”

1. erutkarshtrivedi |

IS it 10th position ?

• catcracker |

Reasonable answer, but do you have a logic? (finding a good logic will enable you to get to a precise answer…)

regards
J

• Utkarsh Trivedi |

Suppose p(k) is probability of person winning.
Till P(k+1)/P(k)>1 it is increasing the chances would increase. It is upto 10.

• catcracker |

The logic is correct 🙂 but the maximum happens at the 11th position, as detailed in today’s post. In general it is close to, but not exactly equal to, the square root of the total number of possibilities.

regards
J

2. pragdeesh |

in this i am having a confusion that possibilities are
person T L
which is the way for A he will point A | B
” ” ” B ” ” B | A
which is not the way for A then——>b | A
which is not the way for B then——->A | B

these are the only possibilities there is nothing in common

in the above we don’t know what kind of person his companion is so there will be 2 possibilities
that is why i can’t understand the above explanation

• catcracker |

Read the question being asked. It is not “which way goes to A”. It is “If I asked the other guy which road goes to A, where would he point”

regards
J

3. Kiran |

Hey guys, can you please tell me where to find the questions for these puzzles

• catcracker |

The puzzle is in the previous post – the idea being that you have a chance to try for yourself without the solution being right in front of you.