Cole played 5 games of bowling. His scores for the first 4 games were 166, 136, 155 and 145 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 5.7 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 166 + 136 + 155 + 145
= 602
Average score of first 4 games
= 602 ÷ 4
= 150.5
(b)
Average score of 5 games
= 150.5 + 5.7
= 156.2
Total score of 5 games
= 5 x 156.2
= 781
Score of Cole's fifth game
= 781 - 602
= 179
Answer(s): (a) 150.5; (b) 179