Equation Detective – Level 1 – Hard

Four friends – Ethan, Chloe, Mason, and Isla – each bought a different item: smoothie, panini, salad, or pasta. Each purchased on a different weekday (Monday, Tuesday, Wednesday, or Friday). Each item had a different cost.

Read more about how to solve these puzzles here

Clues:

1. The smoothie cost twice as much as the salad.
2. Chloe didn’t buy anything on Monday or Friday.
3. Mason spent £1 less than Isla.
4. The pasta cost £9.
5. The total spent by Chloe and Ethan was £10.
6. Mason did not buy the pasta or the panini.
7. The panini cost £2 more than the salad.
8. Ethan’s item cost £2 less than Chloe’s.
9. Isla purchased her item on Wednesday.
10. Chloe did not buy the smoothie.
11. The smoothie cost £1 less than the pasta.
12. Ethan did not buy anything on Friday.