Question

rules of 3 and 9 in divition

Answer 1

RULE OF THREE:————-
If the sum of the digits of a number Is a multiple of three then it is disabled by three




RULE OF NINE ———————
If the sum of digits of a number is a multiple of nine then the number is divisible of nine


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Answer 2

Answer:

Rule of Divisibility by 3 = A number is divisible by 3,only if the sum of its digits is divisible by 3. EXAMPLE= 2445=2+4+4+5=15.

Rule of divisibility by 9 = A number is divisible by 9, only if the sum of its digits is divisible by 9.

EXAMPLE=2115=2+1+1+5=9.