51
150
101 to 199 give 50 odd numbers. Their sum is 7,500.[I'm not too certain that the question meant 'the average total'? But, the odd numbers average total would be 7,500 ÷ 50 = 150]
Here are all five of them: 169,196,225,256,289.
Between the two numbers there are 49.
All of them. 100%. All prime numbers are odd numbers. (The exception being the number 2)
5625
There are 44 odd numbers between the two.
The odd numbers between 40 and 53 are 41,43,45,47,49,51.
There are 40 odd numbers between 20 and 100. Remember that an odd number is every second number. There are 80 numbers between 20 and 100, so there are 40 odd numbers and 40 even numbers.
There are 12 numbers less than 150 which have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121,144.
There are 1499 odd numbers between 2000 and 4999
There are 69 odd numbers between 20 and 158.