Question

In each of the following replace *by a digital so that the number formed is divisible by 9 1st no is 4710*82

Answer 1

To find : Replace * by a digit so that the number formed would be divisible by 9.

Explanation :

Divisiblity check for 9:

A number is said to be divisible by 9 when the sum of the digits is divisible by 9.

       

4710*82

Consider * as  x.

⇒ ( 4 + 7 + 1 + 0 + x + 8 + 2 ) / 9

⇒  ( 22 + x ) / 9 = 0

Now, equate x for values from 0 to 9 to check if the number is divisible by 9.

( 22 + 0 ) = 22 is not divisible by 9 .

( 22 + 1 ) = 23 is not divisible by 9 .

( 22 + 2 ) = 24 is not divisible by 9 .

( 22 + 3 ) = 25 is not divisible by 9 .

( 22 + 4 ) = 26 is not divisible by 9 .

( 22 + 5 ) = 27 is divisible by 9 .

So, the number would be 4710582.

     

Answer 2

Answer:

.

Step-by-step explanation:

first you take the sum

then if the number is divisible then it's ok if

the number was not divisible the add number like- 3 4 5 6

then you divide the number