Question

solve this fast no spaming​

Answer 1

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➡ Divisibility of 9

If the sum of numbers is divisible by 9 , then the number is divisible by 9.

1. 20357 = 2+0+3+5+7= 17

2. 40404 = 4+0+4+0+4 = 12

3. 50391 = 5+0+3+9+1 = 18

4. 9089 = 9+0+8+9 = 26

So, 50391 is divisible by 9

Answer 2

sᴏʟᴜᴛɪᴏɴ :

• To find the number is it division by 9 or not. That is, if the sum of digits of the number is divisible by 9, then the number itself is divisible by 9.

Then,

20357 = 2 + 0 + 3 + 5 + 7 = 17

40404 = 4 + 0 + 4 + 0 + 4 = 12

50391 = 5 + 0 + 3 + 9 + 1 = 18

9089 = 9 + 0 + 8 + 9 = 26

Only 18 is divisible by 9

Therefore, 50391 is divisible by 9