There are 49 even numbers between 1 and 99.
49 of them.
50 and 52 are the even numbers in this range, the odd numbers will be all the others, which is just the number 51.
Between the two numbers there are 49.
There are 15 prime numbers between 1 and 49
There are 49 even numbers between 1 and 99.
36, 49
49 of them.
50 and 52 are the even numbers in this range, the odd numbers will be all the others, which is just the number 51.
36 and 49
33, 35, 39, 45, 49
50
36, 49, 64, 81, 100
The next two square numbers after 30 are 36 and 49
Between the two numbers there are 49.
The only numbers between 30 and 50 that could be prime are 31, 33, 35, 37, 39, 41, 43, 45, 47, 49 because all other numbers are even. 35 and 45 cannot be prime because they are divisible by 5. 33 is divisible by 3, so it is not prime, and 49 is divisible by 7, so it is not prime. That leaves numbers 31, 37, 41, 43, 47, so there are five prime numbers between 30 and 50.
Two. 36, and 49 are perfect squares.