Let the given number be 476 xy 0
Then (4 + 7 + 6 + x + y + 0) = (17 + x + y) must be divisible by 3
And, (0 + x + 7) - (y + 6 + 4) = (x - y -3) must be either 0 or 11
x - y - 3 = 0 ⇒ y = x - 3
(17 + x + y) = (17 + x + x - 3) = (2x + 14)
⇒ x = 2 or x = 8
⇒ x = 8 and y = 5
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