Henry played 5 games of bowling. His scores for the first 4 games were 117, 101, 118 and 146 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 10.9 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 117 + 101 + 118 + 146
= 482
Average score of first 4 games
= 482 ÷ 4
= 120.5
(b)
Average score of 5 games
= 120.5 + 10.9
= 131.4
Total score of 5 games
= 5 x 131.4
= 657
Score of Henry's fifth game
= 657 - 482
= 175
Answer(s): (a) 120.5; (b) 175