| Ques. one fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. if both do combinely in how much time they will finish. |
| Option 1. 2hr 22min |
| Option 2. 1hr 12mins |
| Option 3. 11hr 12mins |
| Option 4. 4hr 12mins |
| Ans. Option 2 |
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| Enter Reason |
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