Tim played 5 games of bowling. His scores for the first 4 games were 150, 132, 109 and 151 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 5.9 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 150 + 132 + 109 + 151
= 542
Average score of first 4 games
= 542 ÷ 4
= 135.5
(b)
Average score of 5 games
= 135.5 + 5.9
= 141.4
Total score of 5 games
= 5 x 141.4
= 707
Score of Tim's fifth game
= 707 - 542
= 165
Answer(s): (a) 135.5; (b) 165