Question

If 64y8 is divisible by 3, then the least value of y is

Answer 1

Step-by-step explanation:

test of divisibility by 3

sum of digits is divisible by 3

64y8

6+4+8=18

least number that is added to 18 to make it divisible by 3 =

3 (18+3=21)

therefore y= 3