Multiple choice

B takes 12 more days than A to finish a piece of work. B and A starts this work and A leaves the work 12 days before the work is finished. B complete 60% of the overall work. How long would B have taken to finish the work if he had worked independently?

  1. 48

  2. 36

  3. 28

  4. 32

  5. 40
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

B completed 60% of work alone, so A did 40%. B worked for entire duration, A worked for 12 days less. If B takes b days alone, his rate is 1/b. A completed 40% in 12 days, so A takes 30 days. Given B takes 12 more days than A, b = 36.

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