Question

the three digit number 3x1 is divisible by 9. find the value of x and the number​

Answer 1

Answer:

Step-by-step explanation:

3x1 is divisible by 9 means that

3 + x + 1 is divisible by 9, that is,

x + 4 is divisible by 9 , that is,

x = 5. the number Will be 351.

Answer 2

Answer:

39

Step-by-step explanation:

to find that the number is divisible by 9 just add all the diguts, the sum of digits should be 9.

3 + X + 1 = 9

X = 9 - 4

X = 5