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Question
In the following number, replace * by the smallest number to make it divisible by 3:
53*46
Solution
53046
Here, 5 + 3 + * + 4 + 6 = 18 + * should be a multiple of 3.
As 18 is divisible by 3, the least value of * should be 0, i.e., 18 + 0 = 18.
∴ * = 0
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