The following number has a missing digit x.
n=13645x04142250.
If n has a remainder 5 when divided by 11 then x = ____.
Solution: 0-5+2-2+4-1+4-0+x-5+4-6+3-1 = 5 (mod 11).
What theorem/rule did the solution use?
Thanks!
Return to “Mathematics GRE Forum: The GRE Subject Test in Mathematics”
Users browsing this forum: No registered users and 6 guests