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OpenStudy (anonymous):
If (a + 3) / 5 is an integer, what is remainder when ‘a’ is divided by 5?
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OpenStudy (pratyush5):
i didnt solve it but by hit and trial it is 2
OpenStudy (amistre64):
(a+3)/5 = n a+3 = 5n a = 5n - 3 a = -3 mod 5; or simply 2 mod 5
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