SOLUTION: Eight men can finish a painting job in 10 days. If the task needs to be completed 2 days ahead of schedule, how many men will be needed?

Question 706108: Eight men can finish a painting job in 10 days. If the task needs to be completed 2 days ahead of schedule, how many men will be needed?
Found 2 solutions by nshah11, hibiskus:
Answer by nshah11(47) (Show Source): You can put this solution on YOUR website!
If 8 men can finish a painting job in 10 days, then each man can complete 1/80th of the job per day.
If the task needs to be completed 2 days ahead of schedule, 1/8 of the job must be completed by the workers per day => x/80 = 1/8 => x= 10 workers
Answer by hibiskus(3) (Show Source): You can put this solution on YOUR website!
Inversely Proportional: when one value decreases at the same rate that the other increases. Than in our examples
when days coming down number of men goes up and we have
for directly propotional
If x then y. If x is changed to a then what will be the value of y?
formula
x->y
a->
for Inversely propotional
If x then y. If x is changed to a then what will be the value of y?
formula
x->y
a->
Eight men can finish a painting job in 10 days. If the task needs to be completed 2 days ahead of schedule, how many men will be needed?
If 10 then 8. If 8 then how many?
10->8
8->
the result is 10 men to finish a paininting job in 8 days. :)
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