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JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

The total number of functions '

f

' from the set

\{1,2,3\}

into the set

\{1,2,3,4,5\}

such that

f(i) \leqslant f(j),\forall i < j

, is

View answer and explanation

Correct option: A

35

Option A (35) is correct because it counts the number of non-decreasing functions from a set of size 3 to a set of size 5.

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