Ben played 6 games of bowling. His scores for the first 5 games were 131, 136, 151, 126 and 128 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
= 131 + 136 + 151 + 126 + 128
= 672
Average score of first 5 games
= 672 ÷ 5
= 134.4
(b)
Average score of 6 games
= 134.4 + 5.1
= 139.5
Total score of 6 games
= 6 x 139.5
= 837
Score of Ben's sixth game
= 837 - 672
= 165
Answer(s): (a) 134.4; (b) 165