NDA2013MathematicsPermutation and CombinationActual
In how many ways can the letters of the word 'GLOOMY' be arranged so that the two O's should not be together?
Options
- A240
- B480
- C600
- D720
Correct answer
A. 240
Step-by-step solution
aligned & . . . . . . . . . GLMY 00 & 4 ^5 C ₂=240 aligned