PrepTest 25, Section 1, Question 20
A disc jockey will play a sequence consisting of exactly seven different songs: three ballads�F, G, and H�and four dance tunes�R, S, V, and X. The following conditions must be met:
A disc jockey will play a sequence consisting of exactly seven different songs: three ballads�F, G, and H�and four dance tunes�R, S, V, and X. The following conditions must be met:
A disc jockey will play a sequence consisting of exactly seven different songs: three ballads�F, G, and H�and four dance tunes�R, S, V, and X. The following conditions must be met:
A disc jockey will play a sequence consisting of exactly seven different songs: three ballads�F, G, and H�and four dance tunes�R, S, V, and X. The following conditions must be met:
No dance tune can be played immediately after another dance tune.
H must be played earlier in the sequence than V.
V and S must be separated from each other by exactly one song.
S must be played immediately before or immediately after F.
F must be played immediately after R, unless G is played earlier than R.
Which one of the following must be true about the sequence?
The first song is X.
The fifth song is S.
No ballad is played immediately after a dance tune.
No ballad is played immediately after another ballad.
No dance tune is played immediately after a ballad.
Explanations
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