On e possibility is 105, 230.
These numbers are generated by the quartic polynomial:
t(n) = (15n4 - 154n3 + 501n2 - 530n + 1488)/24 where n = 1, 2, 3, ...
Honestly you should be able to do this yourself. 51 53 55 57 59
It is 57.
53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
20 and 112 25 and 50 20, 50, 60 and 70
-20
51, 53, 55, 57, and 59
60
Sticking with integers, numbers less than 60 but greater than 55 are 56, 57, 58 and 59.
Mean: 55 and 1/11 Median: 56 Mode: 57
Prime numbers between 55 and 65 are 59 and 61.
The Prime numbers between 50 and 60 are 53 and 59.
Honestly you should be able to do this yourself. 51 53 55 57 59
The odd composite numbers between 50 and 60 are 51, 55, and 57. Because all the primes are odd except for 2 and adding two odd numbers will result in an even number, one of the two prime numbers must be 2, which when added to an odd number will result in an odd number. So, we subtract 2 from each of these numbers and check whether it is prime. 51 - 2 = 49, which is not prime. 55 - 2 = 53, which is prime. 57 - 2 = 55, which is not prime. Thus, the number is 55, which can be written as 2 + 53.
It is 57.
53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
The answer is 57.5 or 57 and a half.
The number is 57.