Question

a three digit number 4bc is divisble by 15​

Answer 1

Answer:

if 4BC is divisible by 15 then it must divisible by 3 and 5. and it will become 4B5. then this number also divisible by 3 so we have to add 4+B+5 and it must be a multiple of 3 .

Answer 2

Step-by-step explanation:

4BC is divisible by 15

Automatically it should also divisible by 3 and 5.

5 is divisible by any number when the units digit should be 0 or 5.

Then It becomes 4B0 or 4B5

3 is divisible by any number when the sum of all digits should be the multiple of 3

Then 4B0=4+B+0=4+B Here if B=5 then it is divisible by 15

4B5=4+B+5=9+B Here if B=0 then it ie divisible by 15