On a shelf, there were 101 jackets and blouses. Vaidev spilt hot orange juice on the shelf and stained 50% of the blouses and 20% of the jackets. If 73 jackets and blouses were still clean, how many stained blouses were there?
|
Jackets |
Blouses |
Total |
Stained |
1 u |
1 p |
28 |
Clean |
4 u |
1 p |
73 |
Total |
5 u |
2 p |
101 |
50% =
50100 =
12 20% =
20100 =
15 Number of stained clothes
= 101 - 73
= 28
4 u + 1 p = 73
1 p = 73 - 4 u --- (1)
1 u + 1 p = 28
1 p = 28 - 1 u --- (2)
(2) - (1)
28 - 1 u = 73 - 4 u
4 u - 1 u = 73 - 28
3 u = 45
1 u = 45 ÷ 3 = 15
Number of stained blouses
= 28 - 1 u
= 28 - 15
= 13
Answer(s): 13