Henry played 5 games of bowling. His scores for the first 4 games were 160, 102, 143 and 117 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
= 160 + 102 + 143 + 117
= 522
Average score of first 4 games
= 522 ÷ 4
= 130.5
(b)
Average score of 5 games
= 130.5 + 7.3
= 137.8
Total score of 5 games
= 5 x 137.8
= 689
Score of Henry's fifth game
= 689 - 522
= 167
Answer(s): (a) 130.5; (b) 167