menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Crew a can tunnel through a mountain in 30 days. if crew B starts from the other side at the same time, the tunnel can be completed in 18 days. how long would it take crew B wor…
Ask a Question
Questions
Unanswered
Tags
Ask a Question
Crew a can tunnel through a mountain in 30 days. if crew B starts from the other side at the same time, the tunnel can be completed in 18 days. how long would it take crew B wor…
asked
Aug 25, 2018
151k
views
4
votes
crew a can tunnel through a mountain in 30 days. if crew B starts from the other side at the same time, the tunnel can be completed in 18 days. how long would it take crew B working alone?
Mathematics
high-school
Shahriar Nasim Nafi
asked
by
Shahriar Nasim Nafi
6.8k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
3
votes
39 days because 1/2 of 18 =9 and 9 plus 30 = 39
Zahra Badri
answered
Aug 30, 2018
by
Zahra Badri
8.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
No related questions found
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org