Directions: Read the information carefully and answer the question asked below.

There are 3 sections of society in a colony i.e. upper class(U), middle class(M) and lower class(L). There are 34 members in upper class, 43 members in middle class and 53 members in lower class. There are 16 members, who are only upper class. There are 25 members, who are only middle class and there are 35 members, who are only lower class. There are 7 members in each group of (upper and middle), (middle and lower) and (lower and upper).