Tom played 6 games of bowling. His scores for the first 5 games were 128, 115, 148, 156 and 132 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 5.7 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 128 + 115 + 148 + 156 + 132
= 679
Average score of first 5 games
= 679 ÷ 5
= 135.8
(b)
Average score of 6 games
= 135.8 + 5.7
= 141.5
Total score of 6 games
= 6 x 141.5
= 849
Score of Tom's sixth game
= 849 - 679
= 170
Answer(s): (a) 135.8; (b) 170