Luke played 6 games of bowling. His scores for the first 5 games were 100, 173, 111, 142 and 136 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 6.1 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 100 + 173 + 111 + 142 + 136
= 662
Average score of first 5 games
= 662 ÷ 5
= 132.4
(b)
Average score of 6 games
= 132.4 + 6.1
= 138.5
Total score of 6 games
= 6 x 138.5
= 831
Score of Luke's sixth game
= 831 - 662
= 169
Answer(s): (a) 132.4; (b) 169