One object per slot, every clue preserved.
Use small diagrams for positions, adjacency and exclusion. The six tasks supply all required facts and do not measure planning speed.
A correct count describes six selected tasks in this section. It is not a reasoning rank or professional qualification. Every count opens all explanations and this complete guide.
A position result is not a planning trait
These six tasks ask about a small, completely stated arrangement. Choosing the keyed answer means that your position agrees with all the supplied restrictions. It does not establish strategic foresight, workplace planning skill or performance under pressure. There is no countdown in this practice. Take enough time to read the list of objects and slots carefully, because a missing one-per-slot condition can change the entire problem even when the other clues look familiar.
Use a slot diagram before guessing
Draw one box for each allowed slot and put fixed objects in first. Mark ordinary before relations with arrows and immediate-before relations with joined boxes; they impose different restrictions. Cross out prohibited positions as exclusions become available. Keep an explicit inventory so that every listed object appears exactly once. After forming a possible arrangement, check every original clue against it, not just the clue that helped you place the last object.
Eliminate slots using the whole inventory
Imagine three demonstrations named Cedar, Flint and Opal assigned once each to slots 1, 2 and 3. Opal is fixed in slot 2, and Cedar must be before Flint. Only slots 1 and 3 remain, so Cedar takes 1 and Flint takes 3. The conclusion uses both the fixed position and the one-object-per-slot rule. Without the latter, assigning Opal would not stop a second object from sharing its slot.
One working arrangement may not be enough
If a question asks what must hold, finding one arrangement that supports an option shows only that the option can hold. Look for another permitted arrangement that breaks it. Some tasks here determine a unique order, but that is a consequence of their particular clues, not a rule for all puzzles. Also keep order distinct from distance or duration: a first event need not be brief, and a between position need not be a numerical midpoint in time.
Change one clue and recheck
After reading the free explanation, replace an immediate-before clue with an ordinary-before clue and see whether more arrangements become possible. This makes the role of adjacency visible without memorizing the original answer. Compare your new arrangements with every remaining clue. Public guide pages contain examples and methods rather than a private result. These fictional tasks are original practice material; they are not a licensed hiring bank, a current LSAT section or evidence of a general reasoning percentile.