engineering recuitment RVUNL JEn (RSEB) Mock Tests 2025 Mathematics Relations and Functions

The total number of functions, f : {1, 2, 3, 4} → {1, 2, 3, 4, 5, 6} such that f(1) + f(2) = f(3), is equal to

1
60
2
90
3
108
4
126
5
98
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