Multiple Choice Questions

If A and B can do a piece of work in 20 days and A alone can do the same work in 60 days then in how...........

Quantitative Aptitude (MTS) Time and work

If A and B can do a piece of work in 20 days, and A alone can do the same work in 60 days, then in how many days can B alone

complete the same work'?

This questions was previously asked in

SSC MTS 22nd October 2021 Shift-3

Here’s the explanation to find how many days B alone can complete the work:

- A and B together take 20 days to finish the work.

- A alone takes 60 days to finish the work.

- A’s work rate is 1/60 of the work per day.

- Combined work rate of A and B is 1/20 of the work per day.

- B’s work rate can be found by subtracting A’s work rate from their combined rate:

$B's rate = (\frac{1}{20} - \frac{1}{60}) = \frac{1}{30} of the work per day .$

- Thus, B alone can complete the work in 30 days.

?? Correct Answer: Option 3 - 30

Submit Error

Please Wait..

Please wait..