In a stall that sells jackets, 4900 white jackets were sold and 10% of the remaining jackets that were sold were grey. Of the leftover, 40% of the jackets sold were yellow jackets and the rest were gold jackets. Given that the number of gold jackets sold was 5% of the total number of jackets sold, how many grey and white jackets were sold altogether?
10% = ¹⁰₁₀₀ = ¹₁₀
40% = ⁴⁰₁₀₀ = ²₅
5% = ⁵₁₀₀ = ¹₂₀

White	Grey	Yellow	Gold
4900	1x5	9x5
		2x9	3x9
19x27			1x27
490 u	5 u	18 u	27 u

The total number of yellow and gold shirts is the combined repeated identity. Make the total number of yellow and gold shirts the same. LCM of 9 and 5 is 45.

The number of gold shirts is repeated. Make the number of gold shirts the same. LCM of 27 and 1 is 27.

Number of white jackets
= 513 u - 5 u - 18 u
= 490 u

490 u = 4900

1 u = 4900 ÷ 490 = 10

Number of grey and white jackets
= 5 u + 4900
= (5 x 10) + 4900
= 50 + 4900
= 4950

Answer(s): 4950