A) \[^{7}{{C}_{4}}\]
B) \[{}^{10}{{C}_{4}}-{}^{8}{{C}_{3}}\]
C) \[{}^{10}{{C}_{4}}-{}^{7}{{C}_{3}}\]
D) \[{}^{8}{{C}_{3}}\]
Correct Answer: C
Solution :
Required number of ways = Total- number of ways in which no two stopping stations are consecutive. \[={}^{10}{{C}_{4}}-{}^{7}{{C}_{3}}\]
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