- A19.8
- B40
- C8
- D22
Step-by-Step Solution
Combined rate = 1/36 + 1/44 = 11/396 + 9/396 = 20/396, so time = 396/20 = 19.8 hours.
Answer: A) 19.8
Harish can type a thesis in 36 hours and Leela can type it in 44 hours. If they split the typing and work at the same time, how many hours will it take?
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