Answer:
The smallest number of chickens that can walk in the given formation is 3.
Explanation:
Let us assume that the chickens are walking in a line,
Chicken 1--Chicken 2--Chicken 3
Given,
Situation 1: 2 chickens in front of 1 chicken
That is 2 in front of 1 = 2+1=3 chicken
Situation 2: 2 chickens behind 1 chicken
That is 2 behind 1 = 2+1=3 chicken
Situation 3: 1 chicken between 2 chicken
1+1+1=3 chicken
From the 3 situations, we can conclude that the minimum number of chickens can possibly be 3.
