Question

If 3125 is a multiple of 3, where z is a digit, find the values of z.​

Answer 1

Answer:

z = 1

because for a no to be divisible by 3 the sum of digits must be divisible by 3.

3125z is divisible by 3

3 + 1 + 2 + 5 = 11

nearest multiple of 3 = 12

>> z = 12 - 11 = 1