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	4
White	7
Silver	10

In each container, the number of yellow beads was 60% more than the number of silver beads and 90% less than the number of white beads. Given that the total possible points if the group managed to collect all the beads were 4494 points, how many beads were not yellow in colour?

Yellow	White	Silver
8x1		5x1
1x8	10x8
8 u	80 u	5 u

	Yellow	White	Silver	Total
Number	8 u	80 u	5u
Value	4	7	10
Total value	32 u	560 u	50 u	642 u

100% + 60% = 160%
160% = ¹⁶⁰₁₀₀ =⁸₅

100% - 90% = 10%
10% = ¹⁰₁₀₀ = ¹₁₀

Total number of points collected
= 32 u + 560 u + 50 u
= 642 u

642 u = 4494

1 u = 4494 ÷ 642 = 7

Number of beads not yellow in colour
= 80 u + 5 u
= 85 u
= 85 x 7
= 595

Answer: 595