Multiple choice

Priya can write a book in 72 days working 8 hours per day. How many hours does she need to work per day to complete the book in 48 days?

  1. 10 hours

  2. 11 hours

  3. 12 hours

  4. 13 hours

  5. 14 hours
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total work is 72 * 8 = 576 man-hours. To complete the same work in 48 days, the hours per day required is 576 / 48 = 12 hours.

AI explanation

Using the formula that work is constant and days multiplied by hours per day is constant, we have 72 days multiplied by 8 hours equals 48 days multiplied by the new hours per day. This gives 576 equals 48 multiplied by the unknown. Dividing 576 by 48 gives 12 hours per day.

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