Tom played 5 games of bowling. His scores for the first 4 games were 104, 113, 111 and 102 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 5.1 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 104 + 113 + 111 + 102
= 430
Average score of first 4 games
= 430 ÷ 4
= 107.5
(b)
Average score of 5 games
= 107.5 + 5.1
= 112.6
Total score of 5 games
= 5 x 112.6
= 563
Score of Tom's fifth game
= 563 - 430
= 133
Answer(s): (a) 107.5; (b) 133