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
21,132,321 questions answered
Popular Conversations
The amount of space that a gas takes up is ...
5/29/2015 7:55:05 AM| 2 Answers
Find the product. (n + 8)(n - 2) User: Divide x4 + 7 by x - 3. ...
Weegy: 2(3y - 7) - 5y(2 - y) = 6y - 14 - 10y + 5y^2 = 5y^2 - 4y - 14 User: Choose the product. -7p3(4p2 + 3p - 1) ...
5/29/2015 11:17:59 AM| 2 Answers
simplify the following expression (x^4)^3 User: simplify 8(4x + 6)
Weegy: 8(4x + 6) = 32x + 48 User: Select the different (4x^2-5x^3)-(2x^2-9x^3)
5/29/2015 8:06:48 PM| 2 Answers
Weegy Stuff
S
Points 820 [Total 828]| Ratings 2| Comments 800| Invitations 0|Offline
S
L
Points 749 [Total 1279]| Ratings 2| Comments 729| Invitations 0|Offline
S
1
L
Points 623 [Total 1015]| Ratings 3| Comments 593| Invitations 0|Offline
S
L
P
Points 472 [Total 2949]| Ratings 1| Comments 462| Invitations 0|Offline
S
P
C
L
P
L
1
P
P
1
P
1
Points 248 [Total 8994]| Ratings 0| Comments 248| Invitations 0|Offline
S
Points 231 [Total 251]| Ratings 0| Comments 231| Invitations 0|Offline
S
1
L
L
Points 84 [Total 8267]| Ratings 0| Comments 84| Invitations 0|Offline
S
L
1
R
Points 80 [Total 1367]| Ratings 0| Comments 80| Invitations 0|Offline
S
L
Points 56 [Total 3810]| Ratings 2| Comments 36| Invitations 0|Offline
S
Points 14 [Total 14]| Ratings 0| Comments 14| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.