Jenson, Albert, Cody and Elijah participated in a Science quiz. The average number of points scored by Jenson and Albert was 75. The average number of points scored by Albert and Elijah was 70.9. The average number of points scored by Jenson, Albert and Elijah was 71. The average number of points scored by Cody and Elijah was 66. How many points did each of them score?

1. Elijah
2. Jenson
3. Albert
4. Cody

(a)
Total score of Jenson and Albert
= 75 x 2
= 150

Total score of Albert and Elijah
= 70.9 x 2
= 141.8

Total score of Jenson, Albert and Elijah
= 71 x 3
= 213

Elijah's score
= 213 - 150
= 63

(b)
Jenson's score
= 213 - 141.8
= 71.2

(c)
Albert's score
= 141.8 - 63
= 78.8

(d)
Total score of Cody and Elijah
= 66 x 2
= 132

Cody's score
= 132 - 63
= 69

Answer(s): (a) 63; (b) 71.2; (c) 78.8; (d) 69