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LR

Sufficient Assumption

Overview

Sufficient assumption questions ask you to find a statement that, if added to the premises, would make the conclusion follow with certainty. Think of it as the missing puzzle piece that completes the logic.

1.Diagram conditional logic when possible
2.The correct answer + premises must guarantee the conclusion
3.Often involves completing a logical chain: If A→B and B→C, you need A→C
4.Use the Assumption Negation Test as a backup check
All managers attended the meeting. Everyone who attended the meeting received the memo. Sarah is a director.

The conclusion that Sarah received the memo follows logically if which is assumed?

Answer C: You need: "All directors are managers" — this connects Sarah (director) to manager, then to meeting attendance, then to memo receipt.
✗Confusing sufficient with necessary assumptions
✗Choosing answers that only partially bridge the gap
✗Ignoring the conditional chain
← Weaken Questions
Necessary Assumption →
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