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Bebras 2022 - Level 1 Question 2

BEBRAS · Bebras 2022 - Level 1

Question 2

There are three boxes. Box A contains a black ball, and box B contains a gray ball. Box C is empty.
Question illustration
A machine performs these steps in order:

- Step 1: Move the ball from box A to box C.
- Step 2: Move the ball from box B to box A.
- Step 3: Move the ball from box C to box B.

Which statement below is correct?
  1. The balls do not change positions
  2. Box C is empty
  3. The black ball is in box C
  4. The gray ball is in box C