Multiple choice

Two teams are working on a project and their productivities are different. They worked together and two-third of the project is completed by the first team and the rest by the second team, then the entire work would be completed in 4 days. How long did it take for the slower team to complete the project separately?

  1. 15 days

  2. 12 days

  3. 8 days

  4. 6 days

  5. 4 days
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let T1 and T2 be the times for team 1 and 2. In 4 days, they complete the work. (2/3) of work by T1 in 4 days means T1 takes 6 days. (1/3) of work by T2 in 4 days means T2 takes 12 days.

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