Circular Arrangements

Five persons A, B, C, D & E are seated in a circular arrangement. If each of the is given a hat of one of the three colours red, blue & green, then the numbers of ways of distributing the hats such that the person seated in adjacent seat gets different coloured hats is

A vertical section of wood, at one point shows circular arrangment of annual rings. This is due to

Arrange the following words according to dictionary arrangement.

Arrange the following words according to dictionary arrangement.

Arrange the following words according to dictionary arrangement. Which of the following words will appear 4th when arranged in the order of dictionary?

Circular Travelling

FPC,Grouping ,identical objects ,circular ,begger''''s method ,divisors arrangements