Question

for what posaible values of b so that the following number are divisible by 3 =7b23

Answer 1

HI HERE IS THE ANSWER


WE KNOW THE DIVISIBILITY OF THREE .IF SUM OF ALL NUMBERS IS DIVIDED BY THREE THEN THE NUMBER IS DIVIDED BY THREE . SO ,

7+B+2+3=12

THE THREE DIVIDE THE NUMBER BEFORE PLACING ANY NUMBER IN THE PLACE OF B.

SO WE CAN PUT THEIR 0,3,6,9

Answer 2

The possible values for b=
Any no which is divisible by 3
Because 7+2+3 is divisible by three
So we can choose any no Divisible by 3 in the place of b
Example 3,6,9