BITSAT 2022 Paper

We can arrange the letters H,A,A,A‌in‌

4!

3!

=4 ways
If one possible arrangement is XXXX
Then, we can arrange, V,N at any of the two places marked with O in the following arrangement
O×O×O×O×O
Thus, we can arrange V and N in 5P2=20 ways. Thus, the number of ways in which letters can be arranged is 4×20=80