Ryan played 6 games of bowling. His scores for the first 5 games were 119, 107, 120, 124 and 142 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 7.1 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 119 + 107 + 120 + 124 + 142
= 612
Average score of first 5 games
= 612 ÷ 5
= 122.4
(b)
Average score of 6 games
= 122.4 + 7.1
= 129.5
Total score of 6 games
= 6 x 129.5
= 777
Score of Ryan's sixth game
= 777 - 612
= 165
Answer(s): (a) 122.4; (b) 165