(23. A takes three times as long as B and C
together to do a job. B takes four times as
long as A and C together to do the work. if
all the three can complete the job in 24 days
then the number of days, A alone will take
to finish the job is ..
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Answer:18 days
Step-by-step explanation:a/3= b+c
A+B+C = 24 days
1/a+b+c = 1/24 days
1/a+a/3 = 1/24 days
3/4a= 1/24 days
4a = 72 days
a = 72/4
A takes 18 days to finish the work
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