In a stall that sells dresses, 440 gold dresses were sold and 50% of the remaining dresses that were sold were silver. Of the leftover, 40% of the dresses sold were blue dresses and the rest were grey dresses. Given that the number of grey dresses sold was 10% of the total number of dresses sold, how many silver and grey dresses were sold altogether?
50% =
50100 =
12 40% =
40100 =
25 10% =
10100 =
110
Gold |
Silver |
Blue |
Grey |
440 |
1x5 |
1x5 |
|
|
2x1 |
3x1 |
9x3 |
1x3 |
20 u |
5 u |
2 u |
3 u |
The total number of blue and grey shirts is the combined repeated identity. Make the total number of blue and grey shirts the same. LCM of 1 and 5 is 5.
The number of grey shirts is repeated. Make the number of grey shirts the same. LCM of 3 and 1 is 3.
Number of gold dresses
= 27 u - 5 u - 2 u
= 20 u
20 u = 440
1 u = 440 ÷ 20 = 22
Number of silver and grey dresses
= 5 u + 3 u
= 8 u
= 8 x 22
= 176
Answer(s): 176