Sam and Ken had the same number of stickers. Sam gave away
57 of his stickers while Ken gave away
35 of his stickers. Given that Sam gave away 12 stickers more than Ken, how many stickers did Sam have at first?
| |
Sam's stickers |
Ken's stickers |
| Before |
7x5 =
35 u |
5x7 =
35 u |
| Change |
- 5x5 =
- 25 u |
- 3x7 =
- 21 u |
| After |
2x5 =
10 u |
2x7 =
14 u |
The number of cards that Sam and Ken each had at first is the same. Make the number of cards that Sam and Ken each had at first the same. LCM of 7 and 5 is 35.
Number of stickers that Sam gave away more than Ken
= 25 u - 21 u
= 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Number of stickers that Sam had at first
= 35 u
= 35 x 3
= 105
Answer(s): 105
