A can finish a work in 15 days ,B in20 days and C in x days .they work together and earn a total rs 4700. find the value of x,if the share of C is rs 1200
Answers
Answered by
0
Answer:
A. B. . c
1/15. 1/20. .1/x
Ratio
multiply by 300x
20 x:15x: 300
.4x: 3x: 60
Creceives 1200 of 4700
4700x60/(7x+60) = 1200
1200 (7x+60) = 4700x60
7x+60=47oox 60/1200 =235
7x+60 =235
7x=235-60
7x=175
x = 175/7 = 25
C will complete the work in 25 days
-
Similar questions