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In a town

5 persons live in the same town. Their first names are: Leonid, Vladimir, Nicholas, Oleg and Peter, last names are: Stepanov, Borisov, Kozin, Drozdov and Istomin.

  • Borisov knows only 2 other persons, while Kozin knows only one.
  • Peter knows all of them, except one.
  • Nicholas and Istomin met in their childhood.
  • Vladimir, Nicholas and Oleg know each other.
  • Drozdov and Vladimir never met.
  • Oleg, Nicholas and Borisov often go out to cinema together.
Find out first and last name for every person.

Leonid Vladimir Nicholas Oleg Peter
Last name

Your name:

List of Winners

NameDate# of attemptsTime spent
Данил Юрьевич10/31/2012 03:12:11100:09:44
Анна06/15/2012 12:29:41100:01:14
праерн12/09/2009 11:58:53100:14:53
BeeАлексу12/09/2009 11:45:07100:06:08
ксю11/25/2009 02:35:56120:23:50
Whimsy05/25/2008 13:55:54100:08:51
PollyMorph05/03/2008 16:10:05100:20:14
1103/14/2008 20:03:06100:09:24
VladStar03/14/2008 00:42:27100:02:15


VisitorsAttempts to solve itWinners% solved% cheatedTotal time spentAverage time

Exercise #54 from "Math. Additional topics." book for 5th grade (2001). Author - Smekalova.E.V.