Question

If 36x2 is divisible by 4 , where x is a digit , found the value of x
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Answer 1

Answer:

We know that the divisibility condition for 9 is that the sum of the digits must be 9 or a multiple of 9

So, the sum of digits in the given problem =15+x is divisible 9

⟹15+x=0 or 9 or 18 and so on

⟹15+x=18

⟹x=3