Question

Three persons A, B and C work together
on a job and finish it in 18 days. If A and B
working together can finish the job in 45
days, find how long C working alone would
take to complete it.​

Answer 1

Step-by-step explanation:

A+B+C)'s one days's work=

10

1

So (A+B+C)'s 4 day's work=

10

4

=

5

2

Remaining part of the work=1−

5

2

=

5

3

∵

5

3

part of the work done by (B+C)= 10 days

∴ 1 work done by (B+C)=

5

3

10

=

3

50

Days

∴A alone work=

10

1

−

50

3

=

25

1

Hence A alone complete the work in 25 days.

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