Ken had 92 stickers more than Mark at first. After Ken had given away 170 of his stickers to Pierre, Mark had thrice as many stickers as Ken. Find the number of stickers Ken had at first.
| |
Ken |
Mark |
Comparing between
Ken and Mark |
92 more |
|
| Before |
1 u + 170 |
3 u |
| Change |
- 170 |
|
| After |
1 u |
3 u |
Ken had 92 stickers more than Mark at first.
If 92 more marbles is given to Mark at first, both will have the same number of marbles.
3 u + 92 = 1 u + 170
3 u - 1 u = 170 - 92
2 u = 78
1 u = 78 ÷ 2 = 39
Number of stickers that Ken has at first
= 1 u + 170
= 39 + 170
= 209
Answer(s): 209
