For what value of digit x, is :7×34 divisible by 9 ? – InterviewSolution

1.

For what value of digit x, is :7×34 divisible by 9 ?

Answer»

7×34 is multiple of 9

=> 7 + x + 3+ 4 is a multiple of 9

=> 14 + x = 0, 9, 18, 27,

=> x = -1, 4, 13,

Since, x is a digit

x = 4

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