PrepTest 38, Section 1, Question 9
Each of six tasks�harvesting, milling, plowing, spinning, threshing, and weaving�will be demonstrated exactly once at a farm exhibition. No two tasks will be demonstrated concurrently. Three volunteers�Frank, Gladys, and Leslie�will each demonstrate exactly two of the tasks. The tasks must be demonstrated in accordance with the following conditions:
Each of six tasks�harvesting, milling, plowing, spinning, threshing, and weaving�will be demonstrated exactly once at a farm exhibition. No two tasks will be demonstrated concurrently. Three volunteers�Frank, Gladys, and Leslie�will each demonstrate exactly two of the tasks. The tasks must be demonstrated in accordance with the following conditions:
Each of six tasks�harvesting, milling, plowing, spinning, threshing, and weaving�will be demonstrated exactly once at a farm exhibition. No two tasks will be demonstrated concurrently. Three volunteers�Frank, Gladys, and Leslie�will each demonstrate exactly two of the tasks. The tasks must be demonstrated in accordance with the following conditions:
Each of six tasks�harvesting, milling, plowing, spinning, threshing, and weaving�will be demonstrated exactly once at a farm exhibition. No two tasks will be demonstrated concurrently. Three volunteers�Frank, Gladys, and Leslie�will each demonstrate exactly two of the tasks. The tasks must be demonstrated in accordance with the following conditions:
Frank demonstrates exactly one task before Gladys demonstrates any of the tasks.
Frank performs neither the first nor the last demonstration.
Gladys demonstrates neither harvesting nor milling.
Leslie demonstrates neither harvesting nor threshing.
Milling is the next task demonstrated after threshing is demonstrated.
Which one of the following must be true?
Frank demonstrates harvesting.
Frank demonstrates milling.
Frank demonstrates threshing.
Gladys demonstrates plowing.
Gladys demonstrates weaving.
Explanations
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