Question 310372
The number of days it takes to complete a job varies inversely as the number of
 people assigned to the job. 
It if takes 7 people, 8 days to complete the job, how long will it take 10 people to complete the job?
:
Let t = time required using 10 men
:
Inverse ratio equation
{{{7/10}}} = {{{t/8}}}
Cross multiply
10t = 56
t = {{{56/10}}}
t = 5.6 days with 10 men working