MCQOPTIONS
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| 1. |
On a new year eve, every student of a class sends a card to every other student. If the total number of cards delivered is 1980, how many students are there in the class ? |
| A. | 41 |
| B. | 43 |
| C. | 45 |
| D. | 47 |
| Answer» D. 47 | |