MCQ
For each $n \ N \in , 10^{2n-1}+ 1$ is divisible by
- ✓$11$
- B$13$
- C$9$
- DNone of these
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| class | $0-10$ | $10-20$ | $20-30$ | $30-40$ |
| Freq | $1$ | $3$ | $4$ | $2$ |