In a tuckshop,
49 of the children wore caps. After 248 children who wore caps left the tuckshop, the percentage of children who wore caps decreased to 10%. How many children in the tuckshop did not wear caps?
|
Wore caps |
Did not wear caps |
Before |
4x9 = 36 u |
5x9 = 45 u |
Change |
- 248 |
|
After |
1x5 = 5 u |
9x5 = 45 u |
10% =
10100 =
110The number of children who did not wear caps remains unchanged. LCM of 5 and 9 is 45.
Number of children who wore caps and left
= 36 u - 5 u
= 31 u
31 u = 248
1 u = 248 ÷ 31 = 8
Number of children who did not wear caps
= 45 u
= 45 x 8
= 360
Answer(s): 360