In how many ways can the letters of the word ‘MOMENT’ be arranged?
A
360
B
60
C
720
D
120
Correct Answer: 360
There are six letters in the given word MOMENT and letter 'M' has come twice.∴ Required number of ways
$$\eqalign{ & = \frac{{6!}}{{2!}} \cr & = \frac{{6 \times 5 \times 4 \times 3 \times 2 \times 1}}{{2 \times 1}} \cr & = 360 \cr} $$
