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- Wed Jun 09, 2021 4:03 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National Junior 2020 P10
- Replies: 6
- Views: 14752
Re: BdMO National Junior 2020 P10
Well, if you think 726 as a 10 base number, then we get 363 as it's 7 base number. 726=2×363, so how can 315 be the required number?