Question and answer
A good puzzle....crack it... Four friends A, B, C, D Need to cross d bridge.. They start on d same time to cross d bridge. A maximum f 2 peoples can cross at a time.. It is night and they have just
1 lamp. People that cross the bridge must carry the lamp to see the way.. A pair must walk together at the speed of slower person... Speeds of A: 1 minute to cross bridge B: 2 minutes to cross bridge C: 7 minutes to cross bridge D: 10 minutes to cross bridge Now question is... "what is d total minimum time required by all 4 friends to cross the bridge....?
The person 1 & 2 will go first then the 2 will come back with the torch & then 5 & 10 both will go with the torch. The person 1 will come back with the torch and 2 & 1 will go to the other side. [ So the total will be 2+2+10+1+2=17mins. ]
Expert answered|jeifunk|Points 12038|
Question
Asked 12/20/2013 8:07:00 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
25,008,462 questions answered
Popular Conversations
In December 1997, the United Nations Framework Convention on Climate ...
Weegy: your answer is A. slow the global energy crisis by encouraging nations to find new sources of nonrenewable ...
5/1/2016 12:33:13 PM| 2 Answers
The total amount of goods and services in the economy that will be ...
Weegy: A macroeconomic value equal to the sum of all personal consumption expenditures, business expenditures, and ...
5/1/2016 7:44:09 PM| 2 Answers
A credit report is a _____.
5/2/2016 7:02:18 AM| 2 Answers
Where did Pure Land Buddhism first become ...
5/2/2016 7:37:41 AM| 2 Answers
Weegy Stuff
S
Points 111 [Total 111] Ratings 6 Comments 51 Invitations 0 Offline
S
Points 77 [Total 77] Ratings 1 Comments 57 Invitations 1 Offline
S
1
L
L
P
R
P
L
P
P
R
Points 69 [Total 12321] Ratings 1 Comments 59 Invitations 0 Online
S
Points 38 [Total 107] Ratings 0 Comments 38 Invitations 0 Offline
S
Points 11 [Total 11] Ratings 1 Comments 1 Invitations 0 Online
S
Points 5 [Total 150] Ratings 0 Comments 5 Invitations 0 Offline
S
Points 1 [Total 1] Ratings 0 Comments 1 Invitations 0 Offline
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
S
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.