Multiple choice

In how many days will 6 men complete a work? Statement 1: 6 men and women can complete the work in 12 days. Statement 2: 8 men can complete the work in 16 days.

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. either 1 or 2

  5. Neither 1 or 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Statement 1 alone is insufficient because we don't know how many women are working with the 6 men. Statement 2 alone is sufficient: if 8 men complete the work in 16 days, then 6 men will take (8×16)÷6 = 64/3 days using the inverse proportion between workers and time.

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