Answer:
23 Girls
Step-by-step explanation:
23 plus 13 equals 36 and 23 is 10 more than 13.
The number of ways of choosing 4 digits from 10 digits without replacement ( order is important) is
. This is the number of all possible permutations of choosing 4 from 10. The first 4 numbers of your phone number is a unique 4 digit number(4 different digits). The required probability is

The probability is 1/6, 16%, or 0.16
Dang so he fat step by step