Difference between revisions of "2021 JMPSC Accuracy Problems/Problem 7"
(→Solution) |
Mathdreams (talk | contribs) |
||
Line 11: | Line 11: | ||
~Geometry285 | ~Geometry285 | ||
+ | |||
+ | ==See also== | ||
+ | #[[2021 JMPSC Sprint Problems|Other 2021 JMPSC Sprint Problems]] | ||
+ | #[[2021 JMPSC Sprint Answer Key|2021 JMPSC Sprint Answer Key]] | ||
+ | #[[JMPSC Problems and Solutions|All JMPSC Problems and Solutions]] | ||
+ | {{JMPSC Notice}} |
Revision as of 16:21, 11 July 2021
Contents
[hide]Problem
If , , and each represent a single digit and they satisfy the equation find .
Solution
Notice that can only be and . However, is not divisible by , so Thus,
~Bradygho
Solution 2
Clearly we see does not work, but works with simple guess-and-check. We have , so and . The answer is
~Geometry285
See also
The problems on this page are copyrighted by the Junior Mathematicians' Problem Solving Competition.