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Thursday, June 25, 2015
Sets and Relations - Singapore Maths Olympiad
Suppose that a function M(n), where n is a +ve integer, is defined by
M(n) = n - 10 for n > 100
M(n) = M(M(n +11) for n ≤ 100
How many solutions does the equation M(n) = 91 have?
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