In a stall that sells skirts, 2880 gold skirts were sold and 10% of the remaining skirts that were sold were green. Of the leftover, 50% of the skirts sold were purple skirts and the rest were pink skirts. Given that the number of pink skirts sold was 5% of the total number of skirts sold, how many green and gold skirts were sold altogether?
10% = ¹⁰₁₀₀ = ¹₁₀
50% = ⁵⁰₁₀₀ = ¹₂
5% = ⁵₁₀₀ = ¹₂₀

Gold	Green	Purple	Pink
2880	1x2	9x2
		1x9	1x9
19x9			1x9
160 u	2 u	9 u	9 u

The total number of purple and pink shirts is the combined repeated identity. Make the total number of purple and pink shirts the same. LCM of 9 and 2 is 18.

The number of pink shirts is repeated. Make the number of pink shirts the same. LCM of 9 and 1 is 9.

Number of gold skirts
= 171 u - 2 u - 9 u
= 160 u

160 u = 2880

1 u = 2880 ÷ 160 = 18

Number of green and gold skirts
= 2 u + 2880
= (2 x 18) + 2880
= 36 + 2880
= 2916

Answer(s): 2916