In a shopping centre that sells jackets, 50 white jackets were sold and 50% of the remaining jackets that were sold were grey. Of the leftover, 40% of the jackets sold were yellow jackets and the rest were red jackets. Given that the number of red jackets sold was 25% of the total number of jackets sold, how many grey and white jackets were sold altogether?
50% = ⁵⁰₁₀₀ = ¹₂
40% = ⁴⁰₁₀₀ = ²₅
25% = ²⁵₁₀₀ = ¹₄

White	Grey	Yellow	Red
50	1x5	1x5
		2x1	3x1
3x3			1x3
2 u	5 u	2 u	3 u

The total number of yellow and red shirts is the combined repeated identity. Make the total number of yellow and red shirts the same. LCM of 1 and 5 is 5.

The number of red shirts is repeated. Make the number of red shirts the same. LCM of 3 and 1 is 3.

Number of white jackets
= 9 u - 5 u - 2 u
= 2 u

2 u = 50

1 u = 50 ÷ 2 = 25

Number of grey and white jackets
= 5 u + 50
= (5 x 25) + 50
= 125 + 50
= 175

Answer(s): 175