Multiple choice

If 39 men can complete a piece of work in 14 days, how many men will be required to complete the same work in 6 days?

  1. 84

  2. 88

  3. 90

  4. 91
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Using the work formula M1 * D1 = M2 * D2: 39 * 14 = M2 * 6. M2 = (39 * 14) / 6 = 39 * 7 / 3 = 13 * 7 = 91.

AI explanation

Using the formula for Time and Work, M1 x D1 = M2 x D2, where M1 is 39 men, D1 is 14 days, and D2 is the new required time of 6 days. Substituting the values gives 39 x 14 = M2 x 6. Solving for M2 yields M2 = (39 x 14) / 6, which simplifies to 91. The required number of men is 91.

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