Lee played 6 games of bowling. His scores for the first 5 games were 123, 153, 113, 132 and 116 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 8.1 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 123 + 153 + 113 + 132 + 116
= 637
Average score of first 5 games
= 637 ÷ 5
= 127.4
(b)
Average score of 6 games
= 127.4 + 8.1
= 135.5
Total score of 6 games
= 6 x 135.5
= 813
Score of Lee's sixth game
= 813 - 637
= 176
Answer(s): (a) 127.4; (b) 176