Question

explain the divisibility rule of 5and 9 with example​

Answer 1

Answer:

divisibility of 5:the unit digit should be 5 or 0

9 :the sum of the digit should divide by 3 twice time

Answer 2

Divisibility of 5 :- The number which have '5' and '0' at its ONEs' place can be divisible by '5' .

  e.g. 10,15,12345, 368749125

Divisibility of 9 :- The sum total of all numbers present in the given number if divisible by '9' can be divisible by '9' .

             OR    In simple , the no. divisible by '3' can be divisible by '9' except no.'3' and the sum result 3 and 6 .

 e.g  108  => sum  of all numbers = 1+0+8 = 9

 sum result 9 can be divisible by 9 . So the no. divisible by 9

 Exceptional case :-  123 => sum= 1+2+3 = 6

This can be divisible by 3 but cannot be divisible by 9