MathsJEE Main 5 Apr 2026, Shift 1·Q21·Numerical·Moderate

Permutations & Combinations · Counting one-one functions

Let

A = \{1, 2, 3, 4, 5, 6\}

. The number of one-one functions

f : A \to A

such that

f(1) \ge 3

f(3) \le 4

and

f(2) + f(3) = 5

, is .

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