Question

the check whether number 12,345 is divisible by 3 and 9 ?​

Answer 1

Answer:

To check the divisibility by 3 and 9, we have to add all the digits

if the no. is divisible by 3&9 then it will be divisible by 3 & 9

12,345

→ 1+2+3+4+5

→ 15

15, is divisible by 3 but not by 9

so 12,345 is only divisible by 3 not by 9

Answer 2

Answer:

see the attachment for answers