Question

1
64.
) A alone can complete a given task in 12days. Together A and B take 7.5 days to
complete the task. If C alone takes 3 days more than B alone to complete this
task, in how many days can C complete this task ?
2) 21
1) 27
3) 30
4) 23
5) 24​

Answer 1

Answer:

One day work of A=1/12

One day work of A&B=1/7.5=2/15

One day work of B=One day work of A&B -One day work of A =2/15–1/12=(8–5)/60=3/60=1/20

B can complete the same job in 20 days

So C can complete the same job in 20+3=23 days

Answer 2

Step-by-step explanation:

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