Perry played 5 games of bowling. His scores for the first 4 games were 119, 105, 131 and 131 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 6.1 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 119 + 105 + 131 + 131
= 486
Average score of first 4 games
= 486 ÷ 4
= 121.5
(b)
Average score of 5 games
= 121.5 + 6.1
= 127.6
Total score of 5 games
= 5 x 127.6
= 638
Score of Perry's fifth game
= 638 - 486
= 152
Answer(s): (a) 121.5; (b) 152