Question : An 11-digit number 7823326867X is divisible by 18. What is the value of X?
Option 1: 6
Option 2: 4
Option 3: 8
Option 4: 2
Answer (1)
20th Jan, 2024
Correct Answer: 2
Solution :
Given: 7823326867X is divisible by 18.
So, it is divisible by 2 and 9 as well.
For it to be divisible by 2, X can be 0, 2, 4, 6, 8
Sum of digits = 52 + X
For it to be divisible by 9, X can be 2 from the available options as 52 + X = 54, which is divisible by 9.
Hence, the correct answer is 2.
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