If m workers can complete a job in d days, how many days will it take n workers, working at the same rate, to complete one third of the job? Express your answer as a common fraction in terms of d, m and n

Respuesta :

Answer:

[tex]Time=\frac{md}{3n}[/tex]

Step-by-step explanation:

We can use the formula shown below to solve this problem.

RWT = J

Where

R is the rate

W is the workers

T is the time

J is the number of jobs

First,

W = m

T = d

J = 1 [since it is said 1 job]

Lets find the Rate (R):

RWT = J

R(m)(d) = 1

R = [tex]\frac{1}{md}[/tex]

Now, using this value of R, we are going to find T, given:

W = n

J = 1/3

R = 1/md (found earlier)

So, let's find T:

RWT = J

[tex](\frac{1}{md})(n)T = \frac{1}{3}\\(\frac{n}{md})T=\frac{1}{3}\\T=\frac{\frac{1}{3}}{\frac{n}{md}}\\T=\frac{1}{3}*\frac{md}{n}\\T=\frac{md}{3n}[/tex]

This is the time it will take, in terms of d, m, and n