Tammy bought some stickers. She gave
17 of the stickers to her sister and sold
34 of the remaining stickers. After that, she bought another 33 stickers and had the same number of stickers that she bought at first. How many stickers did Tammy buy at first?
| Her sister |
Remaining stickers |
Bought stickers |
Total |
1x2 =
2 u |
6x2 =
12 u |
|
7x2 =
14 u |
| |
Sold |
Left |
|
|
| |
3x3 |
1x3 |
|
|
| 2 u |
9 u |
3 u |
33 |
|
The remaining number of stickers before Tammy bought another 33 stickers is repeated. Make the remaining number of stickers the same. LCM of 6 and 4 is 12.
Total number of stickers at first = 14 u
Number of stickers that Tammy had left and bought after that = 3 u + 33
14 u = 3 u + 33
14 u - 3 u = 33
11 u = 33
1 u = 33 ÷ 11 = 3
Total number of stickers at first
= 14 u
= 14 x 3
= 42
Answer(s): 42
