It takes 10 road workers 5 days to complete a road repair when working 2 hours a day. Working at the same pace, how many days will it take 2 people working 5 hours a day to finish it?
Mathematics · High School · Sun Jan 24 2021
llm
Answered on
given that
number of workers(m) , number of hours per day(H) and number of days(D)
case 1 -
m1 = 10
d1 = 5
h1 = 2
case 2 -
m2 = 2
d2 = ?
h2 = 5
We know that,
m2*d2*h2 = m1*d1*h1
=> 2×d2 × 5 = 10×5×2
=> d2 = (10×5×2)/(2×5)
After cancellation, we get
=> d2= 10
Therefore,
2 people working 5 hours a day
finish the work in 10 days