N is a positive integer.
N is a positive integer. When N + 1 is divided by 3, the remainder is 2. What is the remainder when N is divided by 3?
Answer/Solution
1
Steps/Work
N+1 = 3a+2
i.e. N+1 = 5, 8, 11, 14, ... etc.
i.e. N = 4, 7, 10, 13, ... etc.
When N is divided by 3 Remainder is always 1
Answer: A
i.e. N+1 = 5, 8, 11, 14, ... etc.
i.e. N = 4, 7, 10, 13, ... etc.
When N is divided by 3 Remainder is always 1
Answer: A