In a kiosk that sells sweaters, 550 grey sweaters were sold and 25% of the remaining sweaters that were sold were brown. Of the leftover, 40% of the sweaters sold were silver sweaters and the rest were yellow sweaters. Given that the number of yellow sweaters sold was 20% of the total number of sweaters sold, how many brown and yellow sweaters were sold altogether?
25% =
25100 =
14 40% =
40100 =
25 20% =
20100 =
15
| Grey |
Brown |
Silver |
Yellow |
| 550 |
1x5 |
3x5 |
| |
|
2x3 |
3x3 |
| 4x9 |
1x9 |
| 25 u |
5 u |
6 u |
9 u |
The total number of silver and yellow shirts is the combined repeated identity. Make the total number of silver and yellow shirts the same. LCM of 3 and 5 is 15.
The number of yellow shirts is repeated. Make the number of yellow shirts the same. LCM of 9 and 1 is 9.
Number of grey sweaters
= 36 u - 5 u - 6 u
= 25 u
25 u = 550
1 u = 550 ÷ 25 = 22
Number of brown and yellow sweaters
= 5 u + 9 u
= 14 u
= 14 x 22
= 308
Answer(s): 308
