During a telematch, each group of students was supposed to collect as many coloured beads as possible. Each colour represented a certain point as tabulated:

Colours	Points
Purple	3
White	6
Green	9

In each container, the number of purple beads was 60% more than the number of green beads and 50% less than the number of white beads. Given that the total possible points if the group managed to collect all the beads were 1650 points, how many beads were not purple in colour?

Purple	White	Green
8x1		5x1
1x8	2x8
8 u	16 u	5 u

	Purple	White	Green	Total
Number	8 u	16 u	5u
Value	3	6	9
Total value	24 u	96 u	45 u	165 u

100% + 60% = 160%
160% = ¹⁶⁰₁₀₀ =⁸₅

100% - 50% = 50%
50% = ⁵⁰₁₀₀ = ¹₂

Total number of points collected
= 24 u + 96 u + 45 u
= 165 u

165 u = 1650

1 u = 1650 ÷ 165 = 10

Number of beads not white in colour
= 8 u + 5 u
= 13 u
= 13 x 10
= 130

Answer: 130