Esther had some sticker collection.
18 of them were blue and the rest were white. She gave away 132 of the white stickers and 50% of the blue stickers. She then had
14 of her sticker collection left. How many stickers did Esther give away?
| |
Blue |
White |
Total |
Total |
Before
|
1x1 =
1 u |
7x1 =
7 u |
8x1 =
8 u |
4x2 =
8 u |
Change
|
- 0.5x1 =
- 0.5 u |
- 132 |
|
- 3x2 =
- 6 u |
After
|
0.5x1 =
0.5 u |
7 u - 132 |
|
1x2 =
2 u |
The total number of stickers that Esther had at first is repeated. Make the total number of stickers at first the same. LCM 8 and 4 is 8.
Number of blue stickers that Esther gave away
= 50% x 1 u
=
50100 x 1 u
= 0.5 u
0.5 u - 132 = 6 u
6 u - 0.5 u = 132
5.5 u = 132
1 u = 132 ÷ 5.5 = 24
Number of stickers that Esther gave away
= 6 u
= 6 x 24
= 144
Answer(s): 144
