Multiple choice

$8$ men can finish a piece of work in $40$ days. If $2$ more men join them, the work will be computed in

  1. $30$ days
  2. $32$ days
  3. $36$ days
  4. $25$ days
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Work = 8 * 40 = 320 man-days. New men = 8 + 2 = 10. Days = 320 / 10 = 32 days.

AI explanation

Using the formula of man-days, the total work is 8 men multiplied by 40 days, which equals 320 man-days. When 2 more men join, the total strength becomes 10 men. The required time is 320 man-days divided by 10 men, resulting in 32 days.

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