Grade 12 Logic Puzzles Worksheet
Challenge your logical reasoning skills with these advanced logic puzzles designed for Grade 12 students.
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Grade 12 Logic Puzzles
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Read each logic problem carefully and deduce the correct answer based on the given clues. Show your work or reasoning where applicable.
1. Five friends, Alice, Bob, Carol, David, and Emily, each have a different favorite color among red, blue, green, yellow, and purple. Determine each person's favorite color based on the following clues:
- Alice likes blue or green.
- Bob does not like red or yellow.
- Carol's favorite color is not green or purple.
- David likes yellow.
- Emily's favorite color is not blue.
What is each person's favorite color?
Complete the following syllogisms with a valid conclusion.
2. All mathematicians are logical thinkers. Sarah is a mathematician. Therefore, Sarah is .
3. No birds are mammals. All robins are birds. Therefore, no robins are .
Determine if the following statements are logically true or false.
4. If it is raining, then the ground is wet. The ground is wet. Therefore, it is raining.
True
False
5. All dogs are animals. All animals have four legs. Therefore, all dogs have four legs.
True
False
6. A detective is investigating a robbery. Three suspects, Alex, Ben, and Chris, are questioned. They make the following statements:
- Alex: "Ben is innocent."
- Ben: "If Alex is innocent, then Chris is guilty."
- Chris: "I am innocent, and Ben is innocent."
If only one of them is telling the truth, who is the robber?
Alex
Ben
Chris
Cannot be determined
7. What comes next in the sequence: O, T, T, F, F, S, S, E, N, ?