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A completes a work in 12 days whereas B completes the same work in 24 days. If both A and B work together, the work will be completed in ____?
  1. 6
  2. 8
  3. 10
  4. 12
Explanation

Work done by A in 1 day = 1/12  

Work done by B in 1 day = 1/24  

Work done by A + B in 1 day = 1/12 + 1/24  

= 2/24 + 1/24  

= 3/24  

= 1/8  

So together they complete 1/8 of the work in 1 day.  

Time to complete whole work = 1 / (1/8) = 8 days


Last verified on 11-07-2026

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