Let R be the relation over the set of integers,such that mRn if and only if m is a multiple of n.Then R is 

mRm , as m is multiple of m 

$\therefore$R is reflexive 

mRn $\ne$nRm   $\therefore$R is not symmetric 

mRn  and nRp $\Rightarrow$mRp

$\therefore$R is transitive 

Hence reflexive and transitive