Adam has 380 green stickers and blue stickers.
70% of them are green stickers and the rest are blue stickers.
When Adam gives away some green stickers,
60% of the remaining stickers are green stickers.
How many stickers does Adam give away?
|
Green |
Blue |
Before |
7 x 2 = 14 u |
3 x 2 = 6 u |
Change |
- ? |
No change |
After |
3 x 3 = 9 u |
2 x 3 = 6 u |
70% =
70100 =
71060% =
60100 =
35 The number of blue stickers remains unchanged.
Make the number of blue stickers the same using the LCM of 3 and 2.
LCM of 3 and 2 = 6
Total number of stickers at first
= 14 u + 6 u
= 20 u
20 u = 380
1 u = 380 ÷ 20 = 19
Number of stickers that Adam gives away
= 14 u - 9 u
= 5 u
= 5 x 19
= 95
Answer(s): 95