Aha! Puzzles

Class Assignment Logic Puzzle

In history class, 5 students were given extra credit assignments. Each had to pick a past President of the United States and give a short speech about him. Each student picked a different president. Each presentation was a different length, and no two students received the same grade. From the following clues, determine which student spoke about which President, how long each spoke, and the grade they received.

  • 1. Eric did not give a presentation on President Carter.
  • 2. The student whose presentation lasted 15 minutes received a C.
  • 3. Of the student whose presentation lasted 15 minutes, and the student who received a C-, one was Josh, and the other gave a presentation on President Hoover.
  • 4. Eric's presentation lasted 11 minutes.
  • 5. The student who spoke about President Johnson spoke 4 minutes less than the student who received a B.
  • 6. Of the student who spoke for 7 minutes, and the student who got an A on their assignment, one spoke about President Reagan and the other was Eric
  • 7. Of the five students, there was Paul, the student whose presentation lasted 7 minutes, the student who received an A, the student who received a C- and the student who spoke the longest.
  • 8. The student whose presentation was on President Johnson spoke 2 minutes longer than Jack
  • 1. Eric did not give a presentation on President Carter.
  • 2. The student whose presentation lasted 15 minutes received a C.
  • 3. Of the student whose presentation lasted 15 minutes, and the student who received a C-, one was Josh, and the other gave a presentation on President Hoover.
  • 4. Eric's presentation lasted 11 minutes.
  • 5. The student who spoke about President Johnson spoke 4 minutes less than the student who received a B.
  • 6. Of the student who spoke for 7 minutes, and the student who got an A on their assignment, one spoke about President Reagan and the other was Eric
  • 7. Of the five students, there was Paul, the student whose presentation lasted 7 minutes, the student who received an A, the student who received a C- and the student who spoke the longest.
  • 8. The student whose presentation was on President Johnson spoke 2 minutes longer than Jack

Observation: This table is automatically filled accordingly to the grid.

How to play

  • The first step is to read the clues and find the most basic ones;
  • Those clues can be marked on the grid without using any other information;
  • After this, you will need to read the clues again and use logic deduction;
  • Click on a clue to mark it as used;
  • The answer table is filled automatically.

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