Question

I am a prime number less than 10 if you add 10 or 20 to me the result is a prime number what number am I

Answer 1

Could be 7 because if you add 10 it is 17 and if you add 20 it is 27

Answer 2

You are 23 or 13 because 3 is less than 10 and if you add 10 to 3 =13 and 3+20 =23 which are both prim numbers.