###
Finding Missing Digit - Divisibility Rule, 4

__Category__: Arithmetic

"Published in Newark, California, USA"

Find the missing digit so that it becomes divisible by 5 for
a. 94__?__763
b. 32178__?__
__Solution__:
a. Consider the given number
Since the last digit of the given number is 3, then it is not divisible by 5. A number is divisible by 5 if the last digit is 5 or 0. There's
nothing that we can do in
order to become divisible by 5 since the last digit of a given number is
not 5 or 0. You can assign any number to the missing digit but
still, the given number will never become divisible by 5.
b. Consider the given number
A number is divisible by 5 if the last digit is 5 or 0. Since the missing digit is the last digit, then we can assign 5 and 0 so that the given number becomes divisible by 5. Therefore, the possible numbers are **321785** and **321780**.