The 'abe' can be arranged in 3! or 6 ways
the '1984' can be arranged in 4! or 24 ways
number of arrangements = ????
what do you think?
Abelardo wants to create several different 7-character screen names. He wants to use arrangements of the first 3 letters of his first name(abe, followed by arrangements of 4 digits in 1984, the year of his birth. How many different screen names can he create in this way?
A.72
B.144
C.288
D.576
2 answers
It's 144
1 answer