Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there are three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue?
Ms. Forest lets her students choose who their partners will be.
However, no pair of students may work together for more than seven class periods in a row.
Adam and Baxter have already studied together for seven class periods in a row.
Carter and Dennis have worked together for three periods in a row.
Carter does not want to work with Adam.
Who should be assigned to work with Baxter?
Adam and Baxter have already worked together for 7 consecutive periods, so they cannot be paired again.
Carter refuses to work with Adam.
Therefore, Carter can work with Baxter.
$\boxed{\text{Answer: (C) Carter}}$
A and D are unmarried women → they play no game.
C is married to E, hence C is a woman.
No woman plays Chess or Hockey → so E must play Tennis.
B is C’s brother and does not play Tennis or Chess → he must play Hockey.
$\boxed{\text{Answer: (B) B}}$
Region ‘b’ lies in the intersection of Indians and Historians but outside Politicians.
Hence, it represents ‘Indians and Historians but not Politicians’.
$\boxed{\text{Answer: (A) b}}$