Glen played 5 games of bowling. His scores for the first 4 games were 150, 165, 123 and 136 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
= 150 + 165 + 123 + 136
= 574
Average score of first 4 games
= 574 ÷ 4
= 143.5
(b)
Average score of 5 games
= 143.5 + 6.1
= 149.6
Total score of 5 games
= 5 x 149.6
= 748
Score of Glen's fifth game
= 748 - 574
= 174
Answer(s): (a) 143.5; (b) 174