If the 3 - digit number 2x3 is divisible by 3, then the value of x2 + x is (consider the maximum value of x):
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Correct answer: C
Explanation
The correct answer is option 3 i.e. 56
According to the question,
2 + x + 3 = 5 + x is divisible by 3
Hence, possible values of x are 1, 4, and 7.
But we have to take the maximum possible value i.e., 7.
Hence, x = 7
⇒ x² + x = 7² + 7 = 56