Oliver played 6 games of bowling. His scores for the first 5 games were 122, 156, 103, 120 and 102 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 2.9 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 122 + 156 + 103 + 120 + 102
= 603
Average score of first 5 games
= 603 ÷ 5
= 120.6
(b)
Average score of 6 games
= 120.6 + 2.9
= 123.5
Total score of 6 games
= 6 x 123.5
= 741
Score of Oliver's sixth game
= 741 - 603
= 138
Answer(s): (a) 120.6; (b) 138