R is the set of positive even integers less than 50, and S is the set of the squares of the integers in R. How many elements does the intersection of R and S contain ? Choose the correct choice from the following choices.
A) None B) Two C) Three D) Five E) Seven
squares &lt; 50 {1,4,9,16,25,36,49 }   S = {1,4,16,36}   R = {2,.....48}   Hence Three.
<result>C</result>
R is the set of positive even integers less than 50, and S is the set of the squares of the integers in R. How many elements does the intersection of R and S contain ?