SOLUTION: 8 men OR 15 boys can do a job in 20 days. How many days will a group of 4 men and 5 boys take for the same job?
Algebra.Com
Question 807913: 8 men OR 15 boys can do a job in 20 days. How many days will a group of 4 men and 5 boys take for the same job?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
8*20=160 man days each man day 1/160 of the job
15*20=300 boy days each boy day is 1/300 of the job
(4/160+5/300)d=1
d=24 days
RELATED QUESTIONS
20 men or 30 boys can do a certain job in 20 days. how long will it take 6 men and 15... (answered by ankor@dixie-net.com)
2 men can do the same amount of work that 3 boys can do. 4 men and 10 boys can do a piece (answered by josgarithmetic)
3 men can do the job of 4 women. If 3 men can do a job in 8 days, in how many days can 5... (answered by richwmiller)
if 3 men or 6 boys can do piece of work in 20 days.how many days will 6 men and 8 boys... (answered by ankor@dixie-net.com)
Hi
10 men and 20 women can do a job in 15 days. 15 men and 10 women can do the same job... (answered by VFBundy)
Y men can do a job in 20 days. They work for 8 days and rest for 4 days. For them to... (answered by ankor@dixie-net.com)
1.'A' works twice as fast as 'B'. If both of them together take 6 days to complete the... (answered by josmiceli,vvnrichards)
15 men complete a job in 10 days, 8 men finish same job ? how many... (answered by josgarithmetic)
6 men take 4 days to complete a part of a job. how many days will it take 8 men to do the (answered by ankor@dixie-net.com)