In a boutique that sells sweaters, 352 green sweaters were sold and 10% of the remaining sweaters that were sold were red. Of the leftover, 60% of the sweaters sold were black sweaters and the rest were grey sweaters. Given that the number of grey sweaters sold was 25% of the total number of sweaters sold, how many red and green sweaters were sold altogether?
10% = ¹⁰₁₀₀ = ¹₁₀
60% = ⁶⁰₁₀₀ = ³₅
25% = ²⁵₁₀₀ = ¹₄

Green	Red	Black	Grey
352	1x5	9x5
		3x9	2x9
3x18			1x18
22 u	5 u	27 u	18 u

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

The number of grey shirts is repeated. Make the number of grey shirts the same. LCM of 18 and 1 is 18.

Number of green sweaters
= 54 u - 5 u - 27 u
= 22 u

22 u = 352

1 u = 352 ÷ 22 = 16

Number of red and green sweaters
= 5 u + 352
= (5 x 16) + 352
= 80 + 352
= 432

Answer(s): 432