Charlie played 5 games of bowling. His scores for the first 4 games were 155, 119, 149 and 139 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 4.1 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 155 + 119 + 149 + 139
= 562
Average score of first 4 games
= 562 ÷ 4
= 140.5
(b)
Average score of 5 games
= 140.5 + 4.1
= 144.6
Total score of 5 games
= 5 x 144.6
= 723
Score of Charlie's fifth game
= 723 - 562
= 161
Answer(s): (a) 140.5; (b) 161