RRB NTPC · Question 99
N is a whole number which when divided by 6, the remainder 4 is left. If 2N is divided by 6, what will be the remainder? A. 4 B. 8 C. 2 D. 0
Show answer & explanation
Answer: (B) C
Explanation
N = 6k + 4, so 2N = 12k + 8 = 6(2k + 1) + 2. The remainder is 2.