Puzzling Asked on March 16, 2021
This is not my original, but one of the older puzzles I found in an almost-20-years-old puzzle book1. It’s definitely not the original of the book’s author either, so I can’t tell the real original source. When I encountered this for the first time, it took me a whole day to solve to the end.
Complete the following long division. An asterisk may contain any single digit from 0 to 9, except that leading zeros are not permitted.
* * 7 * *
---------------------
* * * * 7 * ) * * 7 * * * * * * *
* * * * * *
-------------------
* * * * * 7 *
* * * * * * *
-------------------
* 7 * * * *
* 7 * * * *
---------------
* * * * * * *
* * * * 7 * *
---------------
* * * * * *
* * * * * *
-----------
0
1 Fun Math Puzzles for Genius (Korean), Boo-sung Park, 2001
It is
I started by noticing that
and got the answer with some more efforts (which is too lengthy to write down).
Correct answer by WhatsUp on March 16, 2021
Get help from others!
Recent Questions
Recent Answers
© 2024 TransWikia.com. All rights reserved. Sites we Love: PCI Database, UKBizDB, Menu Kuliner, Sharing RPP