Question

If 31z is a multiple of 9, where 'z' is a digit, what the value of z?

Answer 1

For any number to be divisible by 9 ,sum of its digits should be 9 or multiple of 9.

So for 31z , z should be 5.

3+1+5=9 .

Hey friend mark as brainliest.

Answer 2

the value of z = 5 its 100% correct!!!!!!!