On a shelf, there were 190 hoodies and blouses. Bobby spilt hot orange juice on the shelf and stained 50% of the blouses and 10% of the hoodies. If 167 hoodies and blouses were still clean, how many stained blouses were there?
| |
Hoodies |
Blouses |
Total |
| Stained |
1 u |
1 p |
23 |
| Clean |
9 u |
1 p |
167 |
| Total |
10 u |
2 p |
190 |
50% =
50100 =
12 10% =
10100 =
110 Number of stained clothes
= 190 - 167
= 23
9 u + 1 p = 167
1 p = 167 - 9 u --- (1)
1 u + 1 p = 23
1 p = 23 - 1 u --- (2)
(2) - (1)
23 - 1 u = 167 - 9 u
9 u - 1 u = 167 - 23
8 u = 144
1 u = 144 ÷ 8 = 18
Number of stained blouses
= 23 - 1 u
= 23 - 18
= 5
Answer(s): 5
