Liam played 6 games of bowling. His scores for the first 5 games were 176, 120, 166, 174 and 140 points respectively.
- Find his average score for the first 5 games.
- After his fifth game, his average score increased by 2.3 points. Find his score for his sixth game.
(a)
Total score of first 5 games
= 176 + 120 + 166 + 174 + 140
= 776
Average score of first 5 games
= 776 ÷ 5
= 155.2
(b)
Average score of 6 games
= 155.2 + 2.3
= 157.5
Total score of 6 games
= 6 x 157.5
= 945
Score of Liam's sixth game
= 945 - 776
= 169
Answer(s): (a) 155.2; (b) 169