PrepTest 37, Section 1, Question 21
A swim team with exactly five members�Jacobson, Kruger, Lu, Miller, Ortiz�swims a ten-lap relay race. Each team member swims exactly two of the laps: one swims laps 1 and 6, one swims laps 2 and 7, one swims laps 3 and 8, one swims laps 4 and 9, and one swims laps 5 and 10. The following conditions apply:
A swim team with exactly five members�Jacobson, Kruger, Lu, Miller, Ortiz�swims a ten-lap relay race. Each team member swims exactly two of the laps: one swims laps 1 and 6, one swims laps 2 and 7, one swims laps 3 and 8, one swims laps 4 and 9, and one swims laps 5 and 10. The following conditions apply:
A swim team with exactly five members�Jacobson, Kruger, Lu, Miller, Ortiz�swims a ten-lap relay race. Each team member swims exactly two of the laps: one swims laps 1 and 6, one swims laps 2 and 7, one swims laps 3 and 8, one swims laps 4 and 9, and one swims laps 5 and 10. The following conditions apply:
A swim team with exactly five members�Jacobson, Kruger, Lu, Miller, Ortiz�swims a ten-lap relay race. Each team member swims exactly two of the laps: one swims laps 1 and 6, one swims laps 2 and 7, one swims laps 3 and 8, one swims laps 4 and 9, and one swims laps 5 and 10. The following conditions apply:
Neither of Kruger's laps is immediately before either of Lu's.
Jacobson does not swim lap 9.
Ortiz's first lap is after (but not necessarily immediately after) Miller's.
At least one of Jacobson's laps is immediately after one of Ortiz's laps.
If Ortiz swims lap 4, then which one of the following could be true?
Jacobson swims lap 1.
Jacobson swims lap 3.
Kruger swims lap 5.
Lu swims lap 3.
Miller swims lap 5.
Explanations
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