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Multiple choice

If 15 people take 5 days to complete a job, in how many days can 25 people finish the work?

  1. $2$
  2. $4$
  3. $3$
  4. $1$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total work = 15 × 5 = 75 person-days. With 25 people, days needed = 75/25 = 3 days. This is an inverse proportion problem - more people means less time. The work (person-days) remains constant.

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