SOLUTION: 12 men took 8 hour and 40 min to complete a job
a. Find the time taken for 8 men to complete the job, working at the same rate
b. if 2 of the 8 men left the job after working for
Algebra.Com
Question 940651: 12 men took 8 hour and 40 min to complete a job
a. Find the time taken for 8 men to complete the job, working at the same rate
b. if 2 of the 8 men left the job after working for just 1 hour. find the time taken for the remaining 6 men working at the same rate
Found 2 solutions by josgarithmetic, ankor@dixie-net.com:
Answer by josgarithmetic(39613) (Show Source): You can put this solution on YOUR website!
r, the rate of work for 1 man, in JOB per HOURS
Initial description for the 1 job is . The factor 12 is for 12 men instead of just 1 man.
(a):
t, time for 8 men to do the 1 job.
;
.
Solve for t.
(b):
Maybe you can solve this yourself. You will have a sum of terms.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
12 men took 8 hour and 40 min to complete a job
Change 8 hr 40 min to 8.667 hrs
Find how many man-hrs required to complete the job
12 * 8.667 = 104 man-hrs
:
a. Find the time taken for 8 men to complete the job, working at the same rate.
let t = time required by 8 men
8t = 104
t = 104/8
t = 13 hrs
:
b. if 2 of the 8 men left the job after working for just 1 hour, find the time taken for the remaining 6 men working at the same rate.
let t = time taken by the remaining 6 men to complete the job
8 men worked for the 1st hr
8(1) + 6t = 104
6t = 104 - 8
6t = 96
t = 96/6
t = 16 more hrs worked by the remaining 6 men
RELATED QUESTIONS
14 men took 6 hours 40 min to complete a job
a. How long will it take 8 men, working at... (answered by josgarithmetic)
14 men took 6 hours and 40 minutes to complete a job. if two of 8 men leave after... (answered by ankor@dixie-net.com)
Five men take 12 days to complete a job. How long will 8 men take at the same... (answered by mananth)
6 men and 9 women require 10 days to complete a job. How much time will 8 men and 3 women (answered by josmiceli,vvnrichards)
7 men take5 weeks to complete a job. Working at the same rate, how long do 10 men take... (answered by ikleyn)
given that it takes 6 hours for 12 men to complete a certain fob, find (i) how long will... (answered by ewatrrr)
60 men worked 12 days on a job. How many men would it take to complete the same job in 8... (answered by nyc_function)
If 8 men took 10 days to complete a job. And 3 men fell ill on the six day. How much... (answered by ankor@dixie-net.com)
Thirty men take 20 days to complete a job working 9 hours a day. How
many hours a day... (answered by ankor@dixie-net.com)