Luis played 6 games of bowling. His scores for the first 5 games were 162, 156, 109, 116 and 121 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 7.7 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 162 + 156 + 109 + 116 + 121
= 664
Average score of first 5 games
= 664 ÷ 5
= 132.8
(b)
Average score of 6 games
= 132.8 + 7.7
= 140.5
Total score of 6 games
= 6 x 140.5
= 843
Score of Luis's sixth game
= 843 - 664
= 179
Answer(s): (a) 132.8; (b) 179