Multiple choice

15 men can complete a job in 8 days. If there were 24 men, how long will it take to complete the same job?

  1. 4 days

  2. 5 days

  3. 6 days

  4. 7 days
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total work = 15 men * 8 days = 120 man-days. With 24 men, time = 120 / 24 = 5 days.

AI explanation

Using the inverse proportion formula for men and days, 15 men times 8 days equals 24 men times the unknown days. This gives a total work measurement of 120 man-days. Dividing these 120 man-days by the available 24 men results in 5 days needed to complete the job.

Keep practicing — related questions