Bryan played 6 games of bowling. His scores for the first 5 games were 108, 140, 170, 111 and 155 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 3.7 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 108 + 140 + 170 + 111 + 155
= 684
Average score of first 5 games
= 684 ÷ 5
= 136.8
(b)
Average score of 6 games
= 136.8 + 3.7
= 140.5
Total score of 6 games
= 6 x 140.5
= 843
Score of Bryan's sixth game
= 843 - 684
= 159
Answer(s): (a) 136.8; (b) 159