SOLUTION: the time allowed for completing a certain piece of work is 40 days. By extending the time by 10 days we find that 25 fewer man will be needed. How many men are required to finish t
Algebra.Com
Question 276945: the time allowed for completing a certain piece of work is 40 days. By extending the time by 10 days we find that 25 fewer man will be needed. How many men are required to finish the work in 40 days?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
the time allowed for completing a certain piece of work is 40 days.
By extending the time by 10 days we find that 25 fewer man will be needed.
How many men are required to finish the work in 40 days?
:
Let x = no. of men required to do the job in 40 days
then we can say
40x man-days required to do the job
:
The same job done in 50 days:
:
50(x-25) = 40x
50x - 1250 = 40x
50x - 40x = 1250
10x = 1250
x = 125 men required to do the job in 40 days
:
:
Check solution by finding the man-days for each crew
40(125) = 5000 md
50(100) = 5000 md
RELATED QUESTIONS
the time allowed for completing a certain piece of work is 40 days. By extending the time (answered by edjones)
the time allowed for completing a certain piece of work is 40 days. By extending the time (answered by Grinnell)
Pedro and Juan can do a piece of work in 3 and 3/7 days . If Pedro works in 3 days and... (answered by josgarithmetic)
A piece of work can be done by 40 days by 25 men. After 16 days, 13 men are transferred.... (answered by Finavon)
FOUR MEN AND 8 WOMEN CAN FINISH A PIECE OF WORK JOINTLY IN 5 DAYS WHILE 3 MEN AND 2... (answered by josgarithmetic,ikleyn)
2 men and 5 boys together can a finish a piece of work in 4 days ,while 3 men and h boys... (answered by richwmiller)
8 man and 12 boys can finish a piece of work in 10 days. While 6 man and 8 boys can... (answered by htmentor)
a piece of work can be done in 34 days by 25 men. After 16 days, 10 men quit work. in... (answered by khwang)
A construction firm has two tractors T one , and T two. both tractors working together... (answered by ankor@dixie-net.com,josgarithmetic)