If * is a digit such that 7235 * is divisible by 11, then the value of * is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 8.
To check divisibility by 11, use the rule: Alternating sum of digits must be divisible by 11.Number: 7 2 3 5 *
Alternating sum = 7 - 2 + 3 - 5 + * = 3 + *
So, 3 + * must be divisible by 11.
Possible value: 3 + * = 11 ⇒ * = 8