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If N=5 gives the remainder 2, then what will be the unit digit of the number N?A. 2 or 5B. 2 or 6C. 2 or 7D. 1 or 6give answers from these options and explain answers also |
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Answer» Answer: Correct answer is 3. Step-by-step explanation: If 5 N
gives remainder 3, then N=5a+3 for natural NUMBER a. For a being EVEN, 5a has unit place 0 and 3 ADDED gives unit place 3 For a being odd, 5a has unit place 5 and 3 added gives unit place 8 So, its either 3 or 8 |
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