There are 120 ways the letters in the word 'study' can be arranged.
The number of ways to arrange the letters in a word is determined by calculating the factorial of the number of letters, assuming all letters are unique. The word 'study' has 5 distinct letters.
Therefore, the calculation is:
5! = 5 x 4 x 3 x 2 x 1 = 120
This means there are 120 different permutations (arrangements) of the letters in the word 'study'.