Question

If 31y5 is multiple of 3 where y is a digit what is the valley of y

Answer 1

Answer:

y = 0,3,6 or 9

Step-by-step explanation:

For a number to be divisible by 3, the sum of its digits should be divisible by 3.

3+1+5+y = 9+y

So y is a single digit multiple of 3.