2021 AMC 10A Problem 7AMC 10 Step by Step
Name: Date: October 28, 2026
Logic Puzzles · difficulty 2 of 5 · about 2 min · position P1-10
Tom has a collection of snakes, of which are purple and of which are happy. He observes that
- all of his happy snakes can add,
- none of his purple snakes can subtract, and
- all of his snakes that can't subtract also can't add.
Which of these conclusions can be drawn about Tom's snakes?
- A)Purple snakes can add.
- B)Purple snakes are happy.
- C)Snakes that can add are purple.
- D)Happy snakes are not purple.
- E)Happy snakes can't subtract.