Tommy played 5 games of bowling. His scores for the first 4 games were 122, 118, 166 and 104 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 7.3 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 122 + 118 + 166 + 104
= 510
Average score of first 4 games
= 510 ÷ 4
= 127.5
(b)
Average score of 5 games
= 127.5 + 7.3
= 134.8
Total score of 5 games
= 5 x 134.8
= 674
Score of Tommy's fifth game
= 674 - 510
= 164
Answer(s): (a) 127.5; (b) 164