If the number 467X4 is divisible by 9, find the value of the digit marked as X.

QuestionIf the number 467X4 is divisible by 9, find the value of the digit marked as X.
Typemultiple_choice
Option4incorrect
Option5incorrect
Option6correct
Option7incorrect
SolutionThe number is divisible by 9 so the sum of its digits would be divisible by 9. ∴4 + 6 + 7 + X + 4 = 21+ X, must be divisible by 9. X = 6, fulfills our requirement so the required digit is 6.
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