Question

Capital English alphabet has 11 symmetric letters that appear same when looked at in a
mirror. These letters are A, H, I, M, O, T, U, V, W, X and Y. How many symmetric three
letters passwords can be formed using these letters ?​

Answer 1

ANSWER :

121 symmetric passwords could be formed .

SOME PASSWORDS :

MOM

YAY

HAH

AHA

HIH

IHI

AIA

IAI