Question: Exactly two-fifths of NBA players who signed up for a test are aged between 25 and 35 years. If three-eighths of them are older than 35, and a total of 1000 players signed up, how many players are younger than 25 years? Think carefully first, then make a decision:
Two - fifths of 1000 players is (2 / 5) * 1000 = 400 players. Three eights of 1000 players is (3 / 8) * 1000 = 375 players. The total number of players 25 or older is 400 + 375 = 775. The number of players younger than 25 years is 1000 - 775 = 225 players. So the answer is 225.