Answer:
48 ways
Step-by-step explanation:
Treat the vowels as 1 unit by itself which in this case is A & E.
Imagine filling in 4 slots:
_ _ _ _ , since A&E are treated as 1 letter.
Thus we have 4 ways to fill in 1st slot, 3 ways for 2nd, 2 for 3rd and 1 for last.
which makes 4 * 3 * 2 * 1 = 24.
However, do note A&E can be arranged as AE or EA meaning,
we need to multiply by 2 factorial.
24 * 2 = 48
