Ratio of number of spectral lines present in balmer series to that in pfund series in transition of electron from n=6 to n=1 in H atom isPlz clarify me the question also

Dear student,

Balmer series consists of those spectral lines in which a transition takes place from higher energy state to n=2. Hence the possible balmer lines are
Hence there are 4 lines.

Pfund series consists of those spectral lines in which a transition takes place from higher energy state to n=5 Hence the possible balmer lines is
Hence there is only 1 line.