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
Silver	3
Blue	6
Grey	7

In each container, the number of silver beads was 60% more than the number of grey beads and 50% less than the number of blue beads. Given that the total possible points if the group managed to collect all the beads were 930 points, how many beads were not silver in colour?

Silver	Blue	Grey
8x1		5x1
1x8	2x8
8 u	16 u	5 u

	Silver	Blue	Grey	Total
Number	8 u	16 u	5u
Value	3	6	7
Total value	24 u	96 u	35 u	155 u

100% + 60% = 160%
160% = ¹⁶⁰₁₀₀ =⁸₅

100% - 50% = 50%
50% = ⁵⁰₁₀₀ = ¹₂

Total number of points collected
= 24 u + 96 u + 35 u
= 155 u

155 u = 930

1 u = 930 ÷ 155 = 6

Number of beads not silver in colour
= 16 u + 5 u
= 21 u
= 21 x 6
= 126

Answer: 126