Question

if 24x is a multipled of 3 then x is a digit, what is the value of x, 6 is one of this number 0, 3, 6, 9, 12 , 15, 18. but since ​

Answer 1

Answer:

Since 24x is a multiple of 3, its sum of digits 6 + x is a multiple of 3; so 6 + x is one of these numbers: 0, 3, 6, 9, 12, 15, 18, ... But since x is a digit, it can only be that 6 + x = 6 or 9 or 12 or 15. Therefore, x = 0 or 3 or 6 or 9. Thus, x can have any of four different values.

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