In how many ways can 3 seats be occupied if 5 people are willing to sit?

Assessment: JAMB UTME - Mathematics - 2013 Subject: General Mathematics

Question 1 Report

In how many ways can 3 seats be occupied if 5 people are willing to sit?
Answer Details
5 people can take 3 places in;
5P3 ways, =  5 ! ( 5 − 3 ) !  =  5 ! 2 !
=  5 × 4 × 3 × 2 ! 2 !
= 5 x 4 x 3
= 60 ways

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