John had
13 as much money as Jack at first. After John received $326 and Jack received $68, both of them had the same amount of money. How much did Jack have at first?
|
John |
Jack |
Before |
1 u |
3 u |
Change |
+ 326 |
+ 68 |
After |
1 u + 326 |
3 u + 68 |
The amount that John and Jack had in the end is the same.
1 u + 326 = 3 u + 68
3 u - 1 u = 326 - 68 = 258
2 u = 258
1 u = 258 ÷ 2 = 129
Amount that Jack had at first
= 3 u
= 3 x 129
= $387
Answer(s): $387