If 5 workers can pick 150 grapes in 10 hours, how long would it take 3 workers to pick the same amount of grapes?
Category: Math · Difficulty: hard
Hint: Think about the relationship between workers, time, and work done.
Answer
25 hours
Explanation
It takes 50 man-hours to pick 150 grapes. For 3 workers, it would take 50/3 = 16.67 hours, which is 25 hours in total.
This is a hard math riddle — a tricky one that takes a little thought. The answer is 25 hours.
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