If the three digit number 20x is divisible by 9, what would be the value of x?

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Solution

The correct option is D
7

A number is divisible by 9 when the sum of the digits of the number is divisible by 9.

Since 20x is divisible by 9. That is possible only when 2 + 0 + x should be divisible by 9.

That is 2 + x should be divisible by 9. That is possible only when 2 + x = 9

x = 7.

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