An orchestra conductor « planning the group's next concert.

An orchestra conductor « planning the group's next concert. The orchestra will play a total of 3 pieces, and the conductor requires the total playing time of the 3 pieces to be at least 90 minutes but no more than 120 minutes. The pieces the conductor is considering are listed below with the approximate playing time.

First the orchestra will play one of two preludes:

• Prelude A (10 minutes)

• Prelude 8 (28 minutes)

Next they will play one of two classical piano concertos:

• Concerto A (32 minutes)

• Concerto B (48 minutes)

Finally they will play one of two romantic symphonies:

• Symphony A (35 minutes)

• Symphony B (41 minutes)

Based on these approximate lengths, select for Piece X and for Piece K two different pieces so that Piece X will be played before Piece Y, and if the conductor chooses Piece X, then in of def to comply with the given time constraints, the conductor must also choose Piece Y. Make only two selections, one in each column.