Subject: mathqa
Question: how many 5 digit nos are there if the 2 leftmost digits are odd and the digit 4 ca n ' t appear more than once in the number ? could someone please provide a solution using a approach other than ( 1 - x ( none ) ) approach ?
Option: 
A: 24300
B: 26500
C: 25700
D: 24400
Answer: A