In the movie “Little Big League, the hero must solve this problem: John can finish a job in five hours. Mary can finish the same job in three hours. If they work together, how long will it take to finish the job? What is the answer?
- 1 and 7/8 hours
- 4 hours
- 1 and 1/4 hours
- 2 hours
Answer
The correct answer is A) 1 and 7/8 hours.
More Science & Technology questions
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- What did early Greeks believe lightning was?
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