Question

If 42z3 is a multiple of 9, where z is a digit,find the value of z

Answer 1

4+2+x+3 = multiple of 9

Hence it can be 0 ,9 ,18 .... any multiple of 9

Just for eg.

Case 1 :- let z be 0 the 4+2+0+3= 9 and 4203 /9= 407 .

Answer 2

Answer:

Step-by-step explanations

Answer is z=0, 9