Question

If the three digit number 24x is divisible by 9 , what is the value of x , where x is a digit

Answer 1

The digit in unit Place is 3
If the sum of the numbers is divided by 9 then the number is divisible by 9

Answer 2

Here, the sum of the digits, if divisible by 9, the number is also divisible by 9..

Thus, 2+4+x=multiple of 9.(0<x<9)

Now using error and trial method..

2+4+x = 9*1 (first multiple of 9, 9*1)
x=9-6 =3..

Thus, the number is 243..

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