A) \[^{30}{{C}_{7}}\]
B) \[^{30}{{C}_{8}}\]
C) \[^{21}{{C}_{7}}\]
D) \[^{21}{{C}_{8}}\]
Correct Answer: C
Solution :
Using begger's method, the number of ways\[{{=}^{21}}{{C}_{7}}\]You need to login to perform this action.
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