1.

If  \[^{2n}{{C}_{3}}:{{\,}^{n}}{{C}_{2}}=44:3\],  then for which of the following  values of \[r\], the value of  \[^{n}{{C}_{r}}\] will be 15 [MP PET 1981]

A. \[r=3\]
B. \[r=4\]
C. \[r=6\]
D. \[r=5\]
Answer» C. \[r=6\]


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