Simon, Caden, Vincent and Lee participated in a Mathematics quiz. The average number of points scored by Simon and Caden was 75. The average number of points scored by Caden and Lee was 71.5. The average number of points scored by Simon, Caden and Lee was 73. The average number of points scored by Vincent and Lee was 65. How many points did each of them score?

1. Lee
2. Simon
3. Caden
4. Vincent

(a)
Total score of Simon and Caden
= 75 x 2
= 150

Total score of Caden and Lee
= 71.5 x 2
= 143

Total score of Simon, Caden and Lee
= 73 x 3
= 219

Lee's score
= 219 - 150
= 69

(b)
Simon's score
= 219 - 143
= 76

(c)
Caden's score
= 143 - 69
= 74

(d)
Total score of Vincent and Lee
= 65 x 2
= 130

Vincent's score
= 130 - 69
= 61

Answer(s): (a) 69; (b) 76; (c) 74; (d) 61