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.
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