Question

if (3x74 ) is a number divisible by 9, then the least value of x is

Answer 1

3+x+7+4=multiple of 9

therefore14+x should be a multiple of 9

since it is said least value of x we have to find , we have to find multiple of 9 which is greater than 14.i.e. 18

therefore14+x=18;

x=4