Multiple choice

If 27 people, working 8 hours a day, can complete a task in 12 days, then in how many days will 18 people finish the task, working 9 hours a day?

  1. 15 days

  2. 20 days

  3. 16 days

  4. 18 days
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Use the formula (M1 * D1 * H1) = (M2 * D2 * H2). (27 * 12 * 8) = (18 * D2 * 9). 2592 = 162 * D2. D2 = 2592 / 162 = 16.

AI explanation

Using the formula M1 * D1 * H1 = M2 * D2 * H2, substitute the given values into the equation. We get 27 * 12 * 8 = 18 * D2 * 9. Simplifying the right side gives 2592 = 162 * D2. Solving for D2 gives 2592 / 162 = 16 days.

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