Question : If 34N is divisible by 11, then what is the value of N?
Option 1: 1
Option 2: 3
Option 3: 4
Option 4: 9
Correct Answer: 1
Solution :
Check divisibility by 11
⇒ Sum of digits in odd places – Sum of digits in even places = 0 or multiple of 11.
⇒ (3 + N) – 4 = 0
⇒ N = 1
Hence, the correct answer is 1.