Question

A number Nis divisible by 9, if the sum of the digits is divisible by_________ ​

Answer 1

Answer:

3........................

Answer 2

Answer:

if the sum of digits is divisible by 9.Otherwise it is not divisible by 9.

Step-by-step explanation:

Let two numbers: 15-(I) and 18-(2)

(1) 15- sum of digits= 1+5=6. 6 is not divisible by 9.

hence 15 is not divisible by 9.

(2) 18-sum of digits=1+8= 9. 9=9. 9 is divisible by 9.

hence 18 is divisible by 9.

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