Ben played 5 games of bowling. His scores for the first 4 games were 177, 150, 152 and 163 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 3.7 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 177 + 150 + 152 + 163
= 642
Average score of first 4 games
= 642 ÷ 4
= 160.5
(b)
Average score of 5 games
= 160.5 + 3.7
= 164.2
Total score of 5 games
= 5 x 164.2
= 821
Score of Ben's fifth game
= 821 - 642
= 179
Answer(s): (a) 160.5; (b) 179