Difficulty:
There are five sales agents in a certain real estate office. One month Andy sold seven times as many properties as Ellen, Bob sold 3 more than Ellen, Cary sold seven times as many as Bob, and Dora sold as many as Bob and Ellen together. Who sold the most properties that month?	Choose the correct choice from the following choices.
A) Andy  B) Bob  C) Cary  D) Dora  E) Ellen
a= 7e   b =3 +e   c = 7b = 21+ 7e (highest of all)   d = b + e = 3+ e +e = 3 + 2e   Ans. Cary
<result>C</result>
Difficulty:
There are five sales agents in a certain real estate office. One month Andy sold seven times as many properties as Ellen, Bob sold 3 more than Ellen, Cary sold seven times as many as Bob, and Dora sold as many as Bob and Ellen together. Who sold the most properties that month?