If 157x234 is divisible by 3, then the digit
at the place of x is
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Step-by-step explanation:
(1 + 5 + 7 + x + 2 + 3 + 4)
= (22 + x)
22 is not divisible by 3 but 24 is.
so adding 2 make it 24
hence x = 2
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