In a mall that sells vests, 150 silver vests were sold and 10% of the remaining vests that were sold were yellow. Of the leftover, 50% of the vests sold were grey vests and the rest were white vests. Given that the number of white vests sold was 20% of the total number of vests sold, how many yellow and silver vests were sold altogether?
10% =
10100 =
110 50% =
50100 =
12 20% =
20100 =
15
| Silver |
Yellow |
Grey |
White |
| 150 |
1x2 |
9x2 |
| |
|
1x9 |
1x9 |
| 4x9 |
1x9 |
| 25 u |
2 u |
9 u |
9 u |
The total number of grey and white shirts is the combined repeated identity. Make the total number of grey and white shirts the same. LCM of 9 and 2 is 18.
The number of white shirts is repeated. Make the number of white shirts the same. LCM of 9 and 1 is 9.
Number of silver vests
= 36 u - 2 u - 9 u
= 25 u
25 u = 150
1 u = 150 ÷ 10 = 6
Number of yellow and silver vests
= 2 u + 150
= 2 x 6 + 150
= 12 + 150
= 162
Answer(s): 162
