If 15648 books need to be placed in boxes and each box can contain at most 9 books. How many books will be in the last unfilled box?
Options:
8 Options:
A) 12 books B) 6 books C) 24 books D) 18 books E) 5 books
The number of books that can be placed in boxes of 9 books is the first number that is divisible by 9 that occurs before 15648.   In order to divide the sum in 9 parts, the amount must be divisible by 9   Divisibility rule of 9: The sum of the digits must be divisible by 9   Sum of digits of 15648 =24 and 18 is divisible by 9.   Hence, we need to remove 6 to this number for it to be divisible by 9   Correct Option:6 books
<result>B</result>
If 15648 books need to be placed in boxes and each box can contain at most 9 books. How many books will be in the last unfilled box?
Options:
8