Multiple choice

If 25 persons can complete a work in 140 days, then how many persons will be required to complete the same work in 70 days?

  1. 70

  2. 50

  3. 40

  4. 80
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Work is constant. M1*D1 = M2*D2. 25 * 140 = X * 70. X = (25 * 140) / 70 = 25 * 2 = 50.

AI explanation

Using the fixed total work formula of M1 * D1 = M2 * D2, we substitute the given men and days. This gives 25 * 140 = M2 * 70. Solving for M2 gives (25 * 140) / 70, which equals 50.

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