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

Colours	Points
Pink	2
Black	3
Blue	4

In each container, the number of pink balls was 20% more than the number of blue balls and 90% less than the number of black balls. Given that the total possible points if the group managed to collect all the balls were 1060 points, how many balls were not pink in colour?

Pink	Black	Blue
6x1		5x1
1x6	10x6
6 u	60 u	5 u

	Pink	Black	Blue	Total
Number	6 u	60 u	5u
Value	2	3	4
Total value	12 u	180 u	20 u	212 u

100% + 20% = 120%
120% = ¹²⁰₁₀₀ =⁶₅

100% - 90% = 10%
10% = ¹⁰₁₀₀ = ¹₁₀

Total number of points collected
= 12 u + 180 u + 20 u
= 212 u

212 u = 1060

1 u = 1060 ÷ 212 = 5

Number of balls not pink in colour
= 60 u + 5 u
= 65 u
= 65 x 5
= 325

Answer: 325