Question: A typical bingo card has numbers 1-75 with Row B (1-15), Row I (16-30), Row N (31-45), Row G (46 - 60) and Row O (61 - 75). Keep in mind there is a ‘Free SPACE’ in Row N.
[A] How many different Bingo cards are possible?
[B] How many different columns are possible under the letter N Row?
[C] How many different columns are possible under the letter B Row?