Ian had $75 more than Will. Every day, Ian and Will would spend an equal amount of money. After 10 days, Ian was left with 4 times as much money as Will. Given that Ian had $160 at first, how much did each of them spend every day?
| |
Will |
Ian |
Difference |
| Before |
|
$160 |
$75 |
| Change |
- ? |
- ? |
|
| After |
1 u |
4 u |
3 u |
Since both Ian and Will spent an equal amount of money every day, the difference in their amounts remains the same.
Difference in their amounts
= 4 u - 1 u
= 3 u
3 u = 75
1 u = 75 ÷ 3 = 25
Amount that Ian had in the end
= 4 u
= 4 x 25
= $100
Amount that Ian had spent
= 160 - 100
= $60
Amount that each of them spent every day
= 60 ÷ 10
= $6
Answer(s): $6
