Multiple choice

If $15$ men can do a piece of work in $20$ days. In how many days can $25$ men finish the same work?

  1. $12$
  2. $15$
  3. $2$
  4. $20$
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A Correct answer
Explanation

Using the work formula M1*D1 = M2*D2, we have 15 * 20 = 25 * D2. 300 = 25 * D2, so D2 = 300/25 = 12 days.

AI explanation

Using the formula men1 times days1 equals men2 times days2, we substitute the given values. This gives 15 men times 20 days equals 25 men times days2. Solving for days2, we get days2 equals 300 divided by 25, which results in 12 days.

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