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Given that the number \(\over35a64\) is divisible by 3, where a is a digit, what are the possible values of a? |
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Answer» \(\over35a64\) is divisible by 3 And, if a number is divisible by 3 then sum of digits must be a multiple of 3. i.e., 3 + 5 + a + 6 + 4 = multiple of 3 a + 18 = 0, 3, 6, 9, 12, 15….. Here ‘a’ is a digit, where, ‘a’ can have values between 0 and 9. a + 18 = 18 which gives a = 0. a + 18 = 21 which gives a = 3. a + 18 = 24 which gives a = 6. a + 18 = 27 which gives a = 9. ∴ a = 0, 3, 6, 9 |
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