If a fixed group of letters must appear together in the same order, treat that entire group as one single block.
Then count arrangements of the block + remaining letters.
Short Solution
Word BANGLORE has 8 distinct letters.
The fixed string ANGLE uses 5 letters: A, N, G, L, E.
Remaining letters: B, O, R (3 letters)
So we have:
- 1 block: ANGLE
- 3 individual letters: B, O, R
Total units to arrange
=4Number of permutations:
4!=24