MCQOPTIONS
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| 1. |
The number of students in four classes A, B, C, D and their respective mean marks obtained by each of the class are given below :The combined mean of the marks of four classes together will be : |
| A. | 32 |
| B. | 50 |
| C. | 20 |
| D. | 15 |
| Answer» B. 50 | |