Question

apreciation on poem piligrim​

Answer 1

Explanation:

A+B-1/30 of the job or A=1/30-B

A C-1/20 of the job or A=1/20-C

C+B- 1/24 of the job or C=1/24-B

1/30-B -1/20-1/24+ B

B = (1/30- 1/20 +1/24)/2

So B 1/80

Then we find C 1/24-1/80 (20 -6) /480 =

14/480

C 7/240

then we find A=1/30-B 1/30-1/ 80

A 5/240

Now with their rendiment in ten days they do

together:

= 10 x ( 5/240+1/80+7/240)

= 15/24

What is left to do is by A only is:

1-15/24 3/8 of the job

Since A does 5/ 240 per day we calculate:

X= (3/8)/ (S/240)

X1 18

Whic means that after the first days that they

work together the job will be finished by A

alone in another 18 days.