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JEE Main 2022
25-07-2022_S2
Question
The number of bijective functions $f:\{1,3,5,7, \ldots, 99\} \rightarrow\{2,4,6,8, \ldots . ., 100\}$ such that $f(3) \geq f(9) \geq f(15) \geq f (21) \geq \ldots . \geq f(99)$, is $\_\_\_\_$ .
Select the correct option:
A
${ }^{50} \mathrm{P}_{17}$
B
${ }^{50} P_{33}$
C
$33!\times 17!$
D
$\frac{50!}{2}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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