Question

For what possible value of b the following numbers are divisible by 3 ?(ii) 83b49(i) 7b23​

Answer 1

Answer:

Step-by-step explanation:

If the sum of the digits of a number is divisible by 3, then the number is divisible by 3.

For example 83b49= 8+3+b+4+9 = 25b which is not divisible by 3.

* 7b23= 7+b+ 2+3 = 12b { which is divisible by 3 (12b/3= 4b)}