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
Black	3
Green	5
Silver	6

In each container, the number of black beads was 60% more than the number of silver beads and 70% less than the number of green beads. Given that the total possible points if the group managed to collect all the beads were 1124 points, how many beads were not black in colour?

Black	Green	Silver
8x3		5x3
3x8	10x8
24 u	80 u	15 u

	Black	Green	Silver	Total
Number	24 u	80 u	15u
Value	3	5	6
Total value	72 u	400 u	90 u	562 u

100% + 60% = 160%
160% = ¹⁶⁰₁₀₀ =⁸₅

100% - 70% = 30%
30% = ³⁰₁₀₀ = ³₁₀

Total number of points collected
= 72 u + 400 u + 90 u
= 562 u

562 u = 1124

1 u = 1124 ÷ 562 = 2

Number of beads not green in colour
= 24 u + 15 u
= 39 u
= 39 x 2
= 78

Answer: 78