Question

31 Z5 multiply of 3 where is a digit what might be the value of Z

Answer 1

The value of z is 3.
3135 = 3× 1045

Answer 2

z =3
or
z=6
or
z=9
because we have a rule for multiple of 3=sum of all digit numbers are divide by 3 it is possible
so,in 31Z5 sum=9+Z
if we keep in place of z=3 or 6 or 9 it is possible
let z=3. 9+3=12
12 is divided by 3 ,so it is possible
let z=6 .9+6=15
15 is divided by 3, so it is possible
let z=9 .9+9=18
18 is divided by 3,so it is possible



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