Lee played 6 games of bowling. His scores for the first 5 games were 145, 165, 101, 144 and 102 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 5.1 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 145 + 165 + 101 + 144 + 102
= 657
Average score of first 5 games
= 657 ÷ 5
= 131.4
(b)
Average score of 6 games
= 131.4 + 5.1
= 136.5
Total score of 6 games
= 6 x 136.5
= 819
Score of Lee's sixth game
= 819 - 657
= 162
Answer(s): (a) 131.4; (b) 162