Owen, Ryan, Asher and Peter participated in a Chinese quiz. The average number of points scored by Owen and Ryan was 77. The average number of points scored by Ryan and Peter was 70.3. The average number of points scored by Owen, Ryan and Peter was 71. The average number of points scored by Asher and Peter was 66. How many points did each of them score?

1. Peter
2. Owen
3. Ryan
4. Asher

(a)
Total score of Owen and Ryan
= 77 x 2
= 154

Total score of Ryan and Peter
= 70.3 x 2
= 140.6

Total score of Owen, Ryan and Peter
= 71 x 3
= 213

Peter's score
= 213 - 154
= 59

(b)
Owen's score
= 213 - 140.6
= 72.4

(c)
Ryan's score
= 140.6 - 59
= 81.6

(d)
Total score of Asher and Peter
= 66 x 2
= 132

Asher's score
= 132 - 59
= 73

Answer(s): (a) 59; (b) 72.4; (c) 81.6; (d) 73