Jaslyn had some sticker collection.
13 of them were yellow and the rest were green. She gave away 161 of the green stickers and 50% of the yellow stickers. She then had
27 of her sticker collection left. How many stickers did Jaslyn give away?
| |
Yellow |
Green |
Total |
Total |
Before
|
1x7 =
7 u |
2x7 =
14 u |
3x7 =
21 u |
7x3 =
21 u |
Change
|
- 0.5x7 =
- 3.5 u |
- 161 |
|
- 5x3 =
- 15 u |
After
|
0.5x7 =
3.5 u |
14 u - 161 |
|
2x3 =
6 u |
The total number of stickers that Jaslyn had at first is repeated. Make the total number of stickers at first the same. LCM 3 and 7 is 21.
Number of yellow stickers that Jaslyn gave away
= 50% x 1 u
=
50100 x 1 u
= 0.5 u
3.5 u - 161 = 15 u
15 u - 3.5 u = 161
11.5 u = 161
1 u = 161 ÷ 11.5 = 14
Number of stickers that Jaslyn gave away
= 15 u
= 15 x 14
= 210
Answer(s): 210
