In a mall that sells shirts, 4030 grey shirts were sold and 10% of the remaining shirts that were sold were green. Of the leftover, 60% of the shirts sold were blue shirts and the rest were white shirts. Given that the number of white shirts sold was 5% of the total number of shirts sold, how many green and grey shirts were sold altogether?
10% =
10100 =
110 60% =
60100 =
35 5% =
5100 =
120
| Grey |
Green |
Blue |
White |
| 4030 |
1x5 |
9x5 |
| |
|
3x9 |
2x9 |
| 19x18 |
1x18 |
| 310 u |
5 u |
27 u |
18 u |
The total number of blue and white shirts is the combined repeated identity. Make the total number of blue and white shirts the same. LCM of 9 and 5 is 45.
The number of white shirts is repeated. Make the number of white shirts the same. LCM of 18 and 1 is 18.
Number of grey shirts
= 342 u - 5 u - 27 u
= 310 u
310 u = 4030
1 u = 4030 ÷ 10 = 13
Number of green and grey shirts
= 5 u + 4030
= 5 x 13 + 4030
= 65 + 4030
= 4095
Answer(s): 4095
