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| Q.6 | The average weight of some persons in a group was 63.5 kg. When 5 persons with weights of 72 kg, 75.8 kg, 76 kg, 72.2 kg and 65 kg joined the group and 9 persons with an average weight of 68 kg left the group, then the average weight of all the persons in the group increased by 0.05 kg. What was the number of persons in the group, initially? | |
| Ans | 1. 49 | |
| 2. 74 | ||
| 3. 64 | ||
| 4. 59 |
Correct Ans: 3
