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Basic Maths Data Intensity 2 :: Discussion
| 8. | P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day? | |
| A. | 10 days | |
| B. | 13 days | |
| C. | 15 days | |
| D. | 17 days | |
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