Multiple choice

Eight men can finish a certain amount of work in 40 days. If 2 more men join them, the number of days needed to do the same amount of work is

  1. 30

  2. 32

  3. 36

  4. 25
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Work = Men * Days. 8 * 40 = 320 man-days. With 10 men, 320 / 10 = 32 days.

AI explanation

Using the inverse proportionality of men and days, the total work is 8 men times 40 days which equals 320 man-days. When 2 more men join, the total number of men becomes 10. The required number of days is 320 man-days divided by 10 men, resulting in 32 days.

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