Archie played 6 games of bowling. His scores for the first 5 games were 178, 123, 136, 102 and 115 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 6.7 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 178 + 123 + 136 + 102 + 115
= 654
Average score of first 5 games
= 654 ÷ 5
= 130.8
(b)
Average score of 6 games
= 130.8 + 6.7
= 137.5
Total score of 6 games
= 6 x 137.5
= 825
Score of Archie's sixth game
= 825 - 654
= 171
Answer(s): (a) 130.8; (b) 171