Vincent played 5 games of bowling. His scores for the first 4 games were 136, 128, 126 and 152 points respectively.
- Find his average score for the first 4 games.
- After his fifth game, his average score increased by 6.9 points. Find his score for his fifth game.
(a)
Total score of first 4 games
= 136 + 128 + 126 + 152
= 542
Average score of first 4 games
= 542 ÷ 4
= 135.5
(b)
Average score of 5 games
= 135.5 + 6.9
= 142.4
Total score of 5 games
= 5 x 142.4
= 712
Score of Vincent's fifth game
= 712 - 542
= 170
Answer(s): (a) 135.5; (b) 170