If the three digit number 24x is divisible by 9, the value of x is:

3 7 1 None of the above

3

If 24x is divisible by 9, then: 2+4+x = 6+x is also divisible by 9. It is possible only when, 6+x = 9, 18 and so on. Since x is single digit, therefore, 6+3 = 9 x = 3