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National and Regional Contests
India Contests
India Pre-Regional Mathematical Olympiad
2012 India PRMO
1
1
Part of
2012 India PRMO
Problems
(1)
2012 preRMO p1
Source:
6/16/2019
Rama was asked by her teacher to subtract
3
3
3
from a certain number and then divide the result by
9
9
9
. Instead, she subtracted
9
9
9
and then divided the result by
3
3
3
. She got
43
43
43
as the answer. What should have been her answer if she had solved the problem correctly?
number theory