JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

The number of maps (functions) from the set

A=\{1,2,3\}

into the set

B=\{1,2,3,4,5,6,7\}

such that

f(i) \leq f(j)

whenever

i < j

, is

View answer and explanation

Correct option: A

Option A (84) is correct because it accurately calculates the number of non-decreasing functions from A to B by considering combinations with repetition.

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