Seth had 119 marbles more than Ken at first. After Seth had given away 157 of his marbles to Ivan, Ken had thrice as many marbles as Seth. Find the number of marbles Seth had at first.
| |
Seth |
Ken |
Comparing between
Seth and Ken |
119 more |
|
| Before |
1 u + 157 |
3 u |
| Change |
- 157 |
|
| After |
1 u |
3 u |
Seth had 119 marbles more than Ken at first.
If 119 more marbles is given to Ken at first, both will have the same number of marbles.
3 u + 119 = 1 u + 157
3 u - 1 u = 157 - 119
2 u = 38
1 u = 38 ÷ 2 = 19
Number of marbles that Seth has at first
= 1 u + 157
= 19 + 157
= 176
Answer(s): 176
