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 285 days ago|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.
17,627,647 questions answered
Popular Conversations
Simplify the expression. (3x - 1)(x^2 + 2x - 4) User: 3x+2(x+5) ...
Weegy: 1+tan^2(x) = sec^2(x) 1+cot^2(x) = csc^2(x) (1+tan^2(x)) / (1+cot^2(x) = sec^2(x) / csc^2(x) = ...
10/1/2014 1:46:20 AM| 3 Answers
antonym of prevented ...
10/1/2014 9:05:38 AM| 3 Answers
Perform the indicated operation. (y 4 - 1) ÷ (y + 1) User: ...
Weegy: 25x^2+10x+1 = (5x + 1)? User: Find the sum and choose the correct answer. 2n 3 + 4n 2 - 7 and -n 3 + 8n - 9 ...
10/1/2014 9:25:19 AM| 3 Answers
what is the square root of 2?
Weegy: 4^(square root of 2) = 7.10299330132 User: what is the square root of 3? Weegy: A divisor of a quantity that ...
10/1/2014 11:05:32 AM| 3 Answers
Which of the following is correct? A. The purine G bonds with the ...
Weegy: B. The purine C bonds with the pyrimidine G. User: The purines in DNA are A. thymine and ...
10/1/2014 2:38:30 PM| 3 Answers
Habeas corpus law
10/1/2014 7:12:34 AM| 2 Answers
Simplify the expression.(3 + i) - (2 - 2i)
Weegy: 3-3 = 0 User: What is the expression in factored form 9x2 - 12x + 4 A. (-3x - 2)2 B. (-3x + 2)(3x - 2) C. (3x ...
10/1/2014 9:57:26 AM| 2 Answers
Consumer rights.
Weegy: A consumer is a person or group of people that are the final users of products generated within a social system. ...
10/1/2014 10:14:56 AM| 2 Answers
Weegy Stuff
S
L
1
L
P
C
1
P
C
1
Points 136 [Total 9617]| Ratings 0| Comments 136| Invitations 0|Online
S
L
1
1
1
1
L
1
L
Points 73 [Total 12448]| Ratings 0| Comments 73| Invitations 0|Offline
S
1
L
L
Points 46 [Total 5840]| Ratings 0| Comments 46| Invitations 0|Online
S
1
L
1
L
P
P
L
Points 43 [Total 12272]| Ratings 0| Comments 43| Invitations 0|Offline
S
P
C
L
P
L
1
Points 20 [Total 6254]| Ratings 0| Comments 20| Invitations 0|Offline
S
Points 10 [Total 10]| Ratings 1| Comments 0| Invitations 0|Offline
S
1
L
1
Points 10 [Total 3354]| Ratings 1| Comments 0| Invitations 0|Offline
S
Points 2 [Total 37]| Ratings 0| Comments 2| Invitations 0|Offline
S
Points 1 [Total 214]| Ratings 0| Comments 1| Invitations 0|Offline
S
1
L
Points 1 [Total 3077]| Ratings 0| Comments 1| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.