The word QUANTITATIVE has 12 letters: Q-U-A-N-T-I-T-A-T-I-V-E
The letters that repeat are:
- A appears 2 times
- T appears 3 times
- I appears 2 times
- All other letters (Q, U, N, V, E) appear once
When all T's must be together, treat the three T's as one single block [TTT].
After grouping the T's together:
Original count: 12 letters
New count: 12 - 3 + 1 = 10 units
The 10 units to arrange are: [TTT], Q, U, A, N, A, I, V, I, E
Among these 10 units:
- A repeats 2 times
- I repeats 2 times
- The [TTT] block counts as 1 unit (no repetition)
Number of arrangements =2!×2!10!
10!=3,628,800
2!=2
Number of ways =2×23,628,800
=43,628,800
=907,200
Therefore, the letters of QUANTITATIVE can be arranged in 907,200 ways with all T's together.