Time and Work Practice Test 2 with solutions

Question : 13 of 40

Marks: +1, -0

If A and B work together, they complete a work in 3 days. B and C together complete the same work in 6 days, while A and C complete that work in 8 days. If three of them work together, then in how many days will they complete the work?

More than 4 days
More than 3 days
Less than 3 days
Less than 2 days

Validate

Solution:

2(A + B + C)'s 1 day's work =

1/3 + 1/6 + 1/8

5/8

Hence, (A + B + C)'s 1 day's work =

5/{16}

So, (A + B + C) will complete the work in

{16}/5

3 1/5

days, i.e., more than 3 days.

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