Q54 / 160 · AP EAMCET 2025 (22 MAY SHIFT 2) · Mathematics

If ${ }^{27} \mathrm{P}_{\mathrm{r}+7}=7722{ }^{25} \mathrm{P}_{(\mathrm{r}+4)}$, then $\mathrm{r}=$

A
9
B
12
C
11
Correct answer
D
10

Hence, the correct answer is option: 'D'.

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