Ben played 6 games of bowling. His scores for the first 5 games were 108, 120, 134, 119 and 180 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 5.3 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 108 + 120 + 134 + 119 + 180
= 661
Average score of first 5 games
= 661 ÷ 5
= 132.2
(b)
Average score of 6 games
= 132.2 + 5.3
= 137.5
Total score of 6 games
= 6 x 137.5
= 825
Score of Ben's sixth game
= 825 - 661
= 164
Answer(s): (a) 132.2; (b) 164