Multiple choice

$30$ men can do a piece of work in $16$ days. How many men would be required to do the same work in $20$ days?

  1. $\;12$
  2. $\;36$
  3. $\;48$
  4. $\;24$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is an inverse proportion problem. 30 men * 16 days = X men * 20 days. X = (30 * 16) / 20 = 480 / 20 = 24.

AI explanation

Using the formula M1 x D1 = M2 x D2, we substitute the given values as 30 x 16 = Men2 x 20. Solving this equation, Men2 equals 480 divided by 20, which results in 24 men.

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