4999 10,000. This may seem counter-intuitive to some. Go to 'Discuss Question' for the rationale behind this answer.
The sum of the first 100 odd numbers (1 through 199) is 10000 (ten thou)
It is 100^2=10000
The answer is one million (the average of the first n odd numbers is always n.)
The average is 10. You will find that the average when adding together the first n odd numbers is always equal to n.
Their sum is 10000.
The 12th odd number.
The nearest number whose square ≤ 10000 is 100. Then the greatest odd number less that 100 is 99 so there are 50 odd numbers in the range 1- 99 inclusive whose squares are less than 10000.
200*50=10000
4999 (not counting 1).
The first 20 odd numbers are: 13579111315171921232527293133353739.
The first 2000 odd natural numbers form an arithmetic sequence where the first term is 1 and the common difference is 2. The nth odd number can be expressed as (2n - 1). Therefore, the 2000th odd number is (2 \times 2000 - 1 = 3999). The average of these numbers is given by the formula for the average of an arithmetic sequence, which is ((\text{first term} + \text{last term}) / 2), resulting in ((1 + 3999) / 2 = 2000).
The first 100 odd whole numbers are: 13579111315171921232527293133353739414345474951535557596163656769717375777981838587899193959799101103105107109111113115117119121123125127129131133135137139141143145147149151153155157159161163165167169171173175177179181183185187189191193195197199.