Adam has 290 green stickers and blue stickers.
40% of them are green stickers and the rest are blue stickers.
When Adam buys more green stickers,
80% of the stickers are green stickers.
How many stickers does Adam buy?
|
Green |
Blue |
Before |
2 x 1 = 2 u |
3 x 1 = 3 u |
Change |
+ ? |
No change |
After |
4 x 3 = 12 u |
1 x 3 = 3 u |
40% =
40100 =
2580% =
80100 =
45 The number of blue stickers remains unchanged.
Make the number of blue stickers the same using the LCM of 3 and 1.
LCM of 3 and 1 = 3
Total number of stickers at first
= 2 u + 3 u
= 5 u
5 u = 290
1 u = 290 ÷ 5 = 58
Number of stickers that Adam buys
= 12 u - 2 u
= 10 u
= 10 x 58
= 580
Answer(s): 580