In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Q: Problem: how many numbers between 190 and 580 are divisible by 45 and 6 ? 
Options: a ) 6 , b ) 7 , c ) 8 , d ) 9 , e ) 10

A: a
****
Q: Problem: a number is doubled and 6 is added . if resultant is trebled , it becomes 72 . what is that number 
Options: a ) 8 , b ) 10 , c ) 9 , d ) 14 , e ) 16

A: c
****
Q: Problem: how many integers are between 4 and 87 / 8 , inclusive ? 
Options: a ) 4 , b ) 5 , c ) 7 , d ) 9 , e ) 10

A:
c
****