প্রশ্ন সংশোধন করুন
প্রশ্ন:
How many different numbers of two digits can be formed with the digits 1, 2, 3, 4, 5, 6; no digit being repeated?
How many different numbers of two digits can be formed with the digits 1, 2, 3, 4, 5, 6; no digit being repeated?