At a party, there were two times as many females as males and same times as many adults as children. Which of the following could NOT be the number of people at the party?  Choose the most appropriate option
A) 384
B) 258
C) 216
D) 121
E) 72
Five times as many females as males --&gt; F = 2M.   Three times as many adults as children --&gt; (F + M) = C.   The number of people at the party = F + M + C = C + C = 2C.   The number of people at the party must be a multiple of 2. The only answer choice which is NOT a multiple of 4 is 2.   Answer: 121.
<result>D</result>
At a party, there were two times as many females as males and same times as many adults as children. Which of the following could NOT be the number of people at the party?