Saturday, Nola bowled 3 games in her bowling league. She had a mean score of 115. The score of her first game was 110. The score of her second game was 90. What was the score of her third game?
A. 145
B. 345
C. 140
D. 225
To find the score of Nola's third game, we need to calculate the total score of all three games and subtract the scores of the first two games. We know that the mean score of the three games is 115, which means the sum of the scores is 3 multiplied by 115.
Mean score = (Sum of scores) / (Number of games)
115 = (Sum of scores) / 3
Sum of scores = 115 * 3
Sum of scores = 345
Now, we subtract the score of the first two games from the sum of the scores to find the score of the third game.
Score of third game = Sum of scores - (Score of first game + Score of second game)
Score of third game = 345 - (110 + 90)
Score of third game = 345 - 200
Score of third game = 145
Therefore, the score of Nola's third game was 145.