If 21z5 is a multiple of 3,where z is a digit find the value of z.
Answers
Answered by
1
Answer:
might be 1 I'm not sure.....
Answered by
0
Answer:
it's 2115
Step-by-step explanation:
because when we add all numbers
i.e.2+1+z+5=8
but 8 isn't a multiple of 3
so add +1 it means 8+1 = 9
which is a multiple of 3.
Hence the z is 1.
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