Arithmetic Reasoning - Verbal and Reasoning

Q1:

What is the smallest number of ducks that could swim in this formation - two ducks in front of a duck, two ducks behind a duck and a duck between two ducks ?

A 3

B 5

C 7

D 9

ANS:A - 3

Clearly, the smallest such number is 3.Three ducks can be arranged as shown above to satisfy all the three given conditions.