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| Q.5 | On mixing two classes A and B of students having average marks 50 and 80, respectively, the average marks obtained is 60. Find the respective ratio of the students in the classes A and B. | |
| Ans | 1. 3 : 2 | |
| 2. 1 : 2 | ||
| 3. 2 : 3 | ||
| 4. 2 : 1 |
Correct Ans Provided: 4
