Answer:
1/4
Step-by-step explanation:
Possible outcomes
For example let's name the tyre ABCD so the possible answer given by the students are
AA,AB,AC,AD,BA,BB,BC,BD,CA,CB,CC,CD,DA,DB,DC,DD.. Giving16 possible result
probability of giving same answer is
possible same answer is AA,BB,CC,DD. giving 4 possible result
Therefore 4/16 = 1/4
