Question

if 31z4 is a multiple of3 where z is a digit what might be thevalues of z​

Answer 1

Answer:

1

Step-by-step explanation:

for a number to be divisible by 3, their total should sum up to multiple of 3.

here 31z4 their total sum up to 3+1+z+4= 8+z

if 1 replace z then their total sum up to 3+1+1+8 = 9, 9 is a multiple of 3

3114 / 3 = 1038

therefore, 3 x 1038 = 3114