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| Q.3 | A can do a certain piece of work in 45 hours. B is 35% more efficient than A and C is 20% less efficient than B. B and C work together for 10 hours. A alone can complete the remaining work in: | |
| Ans | 1. 20.7 hours | |
| 2. 20 hours | ||
| 3. 21.4 hours | ||
| 4. 21 hours |
Correct Ans Provided: 1
