MCQOPTIONS
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				| 1. | 
                                    Q: K, L and M can do a piece of work in 20, 30 and 60 days respectively. In how many days can K do the total work if he is assisted by L and M on every third day ? | 
                            
| A. | 15 days | 
| B. | 13 days | 
| C. | 12 days | 
| D. | 10 days | 
| Answer» B. 13 days | |