In how many different ways can letters of the word OFFICES be arranged?
Options:
A . 2520
B . 5040
C . 1850
D . 1680
E . None of these
Answer: Option A The given word contains 7 letters of which F is taken 2 times. ∴ Required number of ways $$\eqalign{ & = \frac{{7!}}{{2!}} \cr & = \frac{{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}}{{2 \times 1}} \cr & = 2520 \cr} $$
Submit Comment/FeedBack