Question

if 315z is a multiple of 3 where z is a digit what might be the value of z​

Answer 1

Answer:

z=0

Step-by-step explanation:

A number is divisible by 3 if the sum of those digit is divisible by 3.

3+1+5=9

9 is divisible by 3 so the least value of z is 0.

The value can be 3,6,9,12 etc.

But the least value of z is 0