Albert, John, Flynn and Zeph participated in a Science quiz. The average number of points scored by Albert and John was 78. The average number of points scored by John and Zeph was 70.2. The average number of points scored by Albert, John and Zeph was 71. The average number of points scored by Flynn and Zeph was 67. How many points did each of them score?

1. Zeph
2. Albert
3. John
4. Flynn

(a)
Total score of Albert and John
= 78 x 2
= 156

Total score of John and Zeph
= 70.2 x 2
= 140.4

Total score of Albert, John and Zeph
= 71 x 3
= 213

Zeph's score
= 213 - 156
= 57

(b)
Albert's score
= 213 - 140.4
= 72.6

(c)
John's score
= 140.4 - 57
= 83.4

(d)
Total score of Flynn and Zeph
= 67 x 2
= 134

Flynn's score
= 134 - 57
= 77

Answer(s): (a) 57; (b) 72.6; (c) 83.4; (d) 77