Adam has 360 blue stickers and green stickers.
80% of them are blue stickers and the rest are green stickers.
When Adam gives away some blue stickers,
55% of the remaining stickers are blue stickers.
How many stickers does Adam give away?
|
Blue |
Green |
Before |
4 x 9 = 36 u |
1 x 9 = 9 u |
Change |
- ? |
No change |
After |
11 x 1 = 11 u |
9 x 1 = 9 u |
80% =
80100 =
4555% =
55100 =
1120 The number of green stickers remains unchanged.
Make the number of green stickers the same using the LCM of 1 and 9.
LCM of 1 and 9 = 9
Total number of stickers at first
= 36 u + 9 u
= 45 u
45 u = 360
1 u = 360 ÷ 45 = 8
Number of stickers that Adam gives away
= 36 u - 11 u
= 25 u
= 25 x 8
= 200
Answer(s): 200