Gabriel played 6 games of bowling. His scores for the first 5 games were 116, 123, 145, 118 and 140 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 1.1 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 116 + 123 + 145 + 118 + 140
= 642
Average score of first 5 games
= 642 ÷ 5
= 128.4
(b)
Average score of 6 games
= 128.4 + 1.1
= 129.5
Total score of 6 games
= 6 x 129.5
= 777
Score of Gabriel's sixth game
= 777 - 642
= 135
Answer(s): (a) 128.4; (b) 135