\[{{x}_{1}},{{x}_{2}},{{x}_{3}},...{{x}_{50}}\] are fifty real numbers such that \[{{x}_{r}}

\[\frac{^{19}{{C}_{2}}{{\times }^{31}}{{C}_{2}}}{^{50}{{C}_{5}}}\]

\[\frac{^{20}{{C}_{2}}{{\times }^{30}}{{C}_{2}}}{^{50}{{C}_{5}}}\]

\[\frac{^{30}{{C}_{2}}{{\times }^{19}}{{C}_{2}}}{^{50}{{C}_{5}}}\]

\[{{x}_{1}},{{x}_{2}},{{x}_{3}},...{{x}_{50}}\] are fifty real numbers

1.	\[{{x}_{1}},{{x}_{2}},{{x}_{3}},...{{x}_{50}}\] are fifty real numbers such that \[{{x}_{r}}
A.	\[\frac{^{20}{{C}_{2}}{{\times }^{30}}{{C}_{2}}}{^{50}{{C}_{5}}}\]
B.	\[\frac{^{30}{{C}_{2}}{{\times }^{19}}{{C}_{2}}}{^{50}{{C}_{5}}}\]
C.	\[\frac{^{19}{{C}_{2}}{{\times }^{31}}{{C}_{2}}}{^{50}{{C}_{5}}}\]
D.	None of these
Answer» C. \[\frac{^{19}{{C}_{2}}{{\times }^{31}}{{C}_{2}}}{^{50}{{C}_{5}}}\]

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\[{{x}_{1}},{{x}_{2}},{{x}_{3}},...{{x}_{50}}\] are fifty real numbers such that \[{{x}_{r}}

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