a senatorial candidate had planned to visit sev... - JAMB Mathematics 2007 Question
a senatorial candidate had planned to visit seven cities prior to a primary election. However, he could only visit four of the cities. How many different itineraries could be considered?
A
840
B
720
C
640
D
520
correct option: a
No of ways = \(^{7}P_{4}\)
= 7 x 6 x 5 x 4
= 840
= 7 x 6 x 5 x 4
= 840
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