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

Colours	Points
Yellow	2
Gold	3
Brown	6

In each container, the number of yellow beads was 40% more than the number of brown beads and 10% less than the number of gold beads. Given that the total possible points if the group managed to collect all the beads were 1818 points, how many beads were not yellow in colour?

Yellow	Gold	Brown
7x9		5x9
9x7	10x7
63 u	70 u	45 u

	Yellow	Gold	Brown	Total
Number	63 u	70 u	45u
Value	2	3	6
Total value	126 u	210 u	270 u	606 u

100% + 40% = 140%
140% = ¹⁴⁰₁₀₀ =⁷₅

100% - 10% = 90%
90% = ⁹⁰₁₀₀ = ⁹₁₀

Total number of points collected
= 126 u + 210 u + 270 u
= 606 u

606 u = 1818

1 u = 1818 ÷ 606 = 3

Number of beads not gold in colour
= 63 u + 45 u
= 108 u
= 108 x 3
= 324

Answer: 324