Question

find all possible values of x for which the number 7 x 3 is divisible by 3 also find each such number​

Answer 1

since divisibility rule of 3

is if sum of the digits of number is divisible by 3 then the number is divisible by 3

7+3+x= is divisible by 3

10+x=is divisible by 3

X may take the values of

odd numbers.. I. e

2,5,8

if x=2

itbecome12 which is divisible by 3

if x=5

the number is 15 which is divisible by 3

if x=8

the number is 18

which is divisible by 3

so the possible values are

2,5,8