In a crystal maze a set of 25 islands are connected through bridges.Danny, a participant walked onto every island crossing each bridge exactly once.In this process he visited an island Named Pentagon five times. 1.How many bridges are there to pentagon if danny neither started nor ended at Pentagon? 2.How many bridges are there to Pentagon if Danny started at Pentagon but did not end there? 3.How many bridges are there to Pentagon if Danny started and ended at Pentagon?

• first case 10 bridges .... second case 9 bridges since he after visiting 5th time he will exit by 9th bridge .... but in third case 8 bridges are required since after entering the pentagon for 5th time using 8th bridge he will end in pentagon itself...
• 12 years agoHelpfull: Yes(2) No(0)
• danny needs 5 bridges to go n 5 diff to cum back so in all 10 bridges are needed in first case when he neither strtd nor end at pentagon...
  in second and third case answer should be 9..
• 12 years agoHelpfull: Yes(1) No(0)