Adam has 360 green stickers and blue stickers.
75% of them are green stickers and the rest are blue stickers.
When Adam gives away some green stickers,
55% of the remaining stickers are green stickers.
How many stickers does Adam give away?
|
Green |
Blue |
Before |
3 x 9 = 27 u |
1 x 9 = 9 u |
Change |
- ? |
No change |
After |
11 x 1 = 11 u |
9 x 1 = 9 u |
75% =
75100 =
3455% =
55100 =
1120 The number of blue stickers remains unchanged.
Make the number of blue stickers the same using the LCM of 1 and 9.
LCM of 1 and 9 = 9
Total number of stickers at first
= 27 u + 9 u
= 36 u
36 u = 360
1 u = 360 ÷ 36 = 10
Number of stickers that Adam gives away
= 27 u - 11 u
= 16 u
= 16 x 10
= 160
Answer(s): 160