If n is an integer and 2 < n < 6, what is the value of n?
(1）n is a factor of 15.
(2) n is a factor of 21.
(1）n is a factor of 15.
(2) n is a factor of 21.
1) 15= 3*5; as n is a factor of 15 therefore possible values of n are 3 and 5 as n lies between 2<n<6;feosun wrote:If n is an integer and 2 < n < 6, what is the value of n?
(1）n is a factor of 15.
(2) n is a factor of 21.
hence 1 alone is not sufficient to answer the question.
2) 21=3*7; as n lies between 2<n<6; therefore n must be 3; hence 2 alone is sufficient to answer the question hence B
