Multiple choice

In how many days will 5 men and 4 women together complete the work?()(I). 15 men and 12 women can complete the same work in 12 days.()(II). 10 men and 8 women can complete the same work in 16 days.

  1. Only II

  2. Only I

  3. From I and II

  4. Either from I or II
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Both statements give equivalent information about the relationship between men and women's work rates. From I: (15 men + 12 women) = 12 days. From II: (10 men + 8 women) = 16 days. Both simplify to the same ratio, so either is sufficient.

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