SOLUTION: 7 men can do a piece of work in 12 days. How many men will be required to do double the work in 8 days.

Algebra.Com
Question 764881: 7 men can do a piece of work in 12 days. How many men will be required to do double the work in 8 days.
Found 2 solutions by mbgupta@hotmail.com, ramkikk66:
Answer by mbgupta@hotmail.com(1)   (Show Source): You can put this solution on YOUR website!
42 men
Answer by ramkikk66(644)   (Show Source): You can put this solution on YOUR website!
7 men can do a piece of work in 12 days. How many men will be required to do double the work in 8 days.

Ans:
7 men can do the work in 12 days.
1 man can do the work in (7*12) = 84 days
1 man can do "double" the work - takes double the time - in (84*2) = 168 days

So to complete 168 person-days of work in 8 days, you need
(168/8) = 21 men.

:)

RELATED QUESTIONS

If 15 men complete a work in 20 days, then how many men will be required to do the same... (answered by josgarithmetic)
If 12 men do a piece of work in 80 days. In how many days will 16 men do... (answered by stanbon)
if 20 men can do a piece of work in 8 days, then how many men can finish the same work in (answered by ankor@dixie-net.com)
8 men and 16 women can do a work in 8 days.40 men and 48 women can do the same work in 2... (answered by josgarithmetic,MathTherapy)
If 6 men can do a piece of work in 14 days, how many men are needed to do the same work... (answered by tutorcecilia,ptaylor)
If 6 men can do a piece of work in 4 days, how many men are needed to do the work in 21... (answered by ankor@dixie-net.com)
If 6 men can do a piece of work in 14 days, how many men are needed to do the work in... (answered by stanbon)
If 6 men can do a piece of work in 14 days, how many men are needed to do the work in 21... (answered by josmiceli)
if 6 men can do a piece of work in 14 days, how many men are needed to do the work in 21... (answered by JimboP1977)