The 12th odd number.
You can't find five odd numbers that add up to fifty; the sum of five odd numbers will always be odd.
Twenty.
The first 100 odd whole numbers are: 13579111315171921232527293133353739414345474951535557596163656769717375777981838587899193959799101103105107109111113115117119121123125127129131133135137139141143145147149151153155157159161163165167169171173175177179181183185187189191193195197199.
The sum of the first 15 odd numbers is 225.
The 12th odd number.
The answer depends on what the twenty numbers are!
You can't find five odd numbers that add up to fifty; the sum of five odd numbers will always be odd.
2500
The average is 10. You will find that the average when adding together the first n odd numbers is always equal to n.
Twenty.
The first 20 odd numbers are: 13579111315171921232527293133353739.
The first 100 odd whole numbers are: 13579111315171921232527293133353739414345474951535557596163656769717375777981838587899193959799101103105107109111113115117119121123125127129131133135137139141143145147149151153155157159161163165167169171173175177179181183185187189191193195197199.
The first 85 odd numbers are: 1 3579111315171921232527293133353739414345474951535557596163656769717375777981838587899193959799101103105107109111113115117119121123125127129131133135137139141143145147149151153155157159161163165167169.
The sum of the first 15 odd numbers is 225.
The sum of the first 300 odd numbers is 90,000
The sum of the first 40 odd numbers is 1,600.