|
Question 824561: a contractor engages 24 workers to build a road in 30 days. after 24 days he finds that 1/4 of the work remains. how many more workers are needed to build the road in time.
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
work rate experienced during the first 24 days:
r = jobs/(workers*time)
r = (3/4)/(24*24)
r = 0.001302083333333 job/(worker*day)
---
assume the same work rate to complete the remaining 1/4 of the job in the remaining 6 days:
r = (1/4)/(workers*6)
workers = (1/4)/(6*r)
workers = (1/4)/(6*0.001302083333333)
workers = 32
additional workers = 32 - 24 = 8
---
answer:
to complete the job in the remaining 6 days, the contractor must hire 8 additional workers, for a total of 32 workers.
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
|
|
|
| |
