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Equation Detective Puzzle

Equation Detective – Level 1 – Easy

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Three students – Jake, Layla, and Emma – each bought one item from the school tuck shop (crisps, cookie, juice) on a different day (Monday, Wednesday, Friday). Each item cost a different amount, and the clues below reveal what happened.

Read more about how to solve these puzzles here

Clues:

  1. The cookie cost £2 more than the juice.
  2. The crisps cost £1 less than the cookie.
  3. Jake did not buy anything on Friday.
  4. The person who bought the crisps paid £3.
  5. Layla bought her item on Wednesday.
  6. Emma paid £4.
  7. The juice was not purchased on Wednesday.

Your Workings For Equation Detective

Enter your working out in this box, including your suggested solution.
Your Answers:
Name Food Day Price
Jake
Layla
Emma

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Additional instructions for Equation Detective (Level 1, Easy)

Equation Detective – Easy

Equation Detective is a logic grid puzzle: treat each clue as a rule and keep applying rules until the grid can’t be anything else.

Simple rules that unlock Easy puzzles:

  • One-in-each: each person has exactly one day, one item, one price.
  • When you confirm one match, cross out all other matches in that row/column.
  • Use “before/after” clues as ordering constraints (the day before/after instantly rules out edge days).

Final check: make sure every clue is satisfied — especially “not” clues and ordering clues.

Full help: Equation Detective

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