Multiple choice

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?

  1. 10

  2. 12

  3. 16

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

Total work = 10 hours/day * 18 days = 180 man-hours. To finish in 15 days, hours/day = 180 / 15 = 12 hours/day.

AI explanation

Using the formula M1D1H1 = M2D2H2, we calculate the required hours as (1 man x 18 days x 10 hours) divided by (1 man x 15 days). This simplifies to 180 divided by 15, which equals 12 hours per day.

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