Question

If 1234A6 is divisible by 18, then the value of A is _________.
1. 2
2. 1
3. 9
4. 7

Answer 1

Correct Answer - Option 1 : 2

Given :

1234A6 is divisible by 18

Concept used :

If a number is divisible by 18 it must be divisible by 9 and 2 

For a number to be divisible by 9 the sum of digits of the number must also be divisible by 9 

Calculations :

1234A6 is an even number so divisible by 2 

Now it must be divisible by 9 

The Sum of digits in 1234A6 must be divisible by 9 

Out of all option, only option 1 is satisfying the condition as the sum is coming 18 which is divisible by 9 

∴ Option 1 will be the correct choice.