Question

In how many different ways can the letters of the word 'optical' be arranged so that the vowels always come together? Select one:
a. 825
b. 720
c. 810
d. 620

Answer 1

Answer:

we have to put OIA together so let's consider OIA as one letter then total no of letters = (OIA) PTCL

= 5

so no. of ways = 5! = 120