Daniel had $60 more than Cathy. After Cathy spent
15 of her money, Daniel had five times as much money as Cathy. How much money did Daniel have at first?
| |
Daniel |
Cathy |
| Before |
20 u |
5 u |
| Change |
|
- 1 u |
| After |
20 u |
4 u |
Amount that Daniel had in the end
= 5 x 4 u
= 20 u
If Cathy had another $60 at first, the amounts that Daniel and Cathy each had at first will be the same.
20 u = 5 u + 60
20 u - 5 u = 60
15 u = 60
1 u = 60 ÷ 15 = 4
Amount Daniel had at first
= 20 u
= 20 x 4
= $80
Answer(s): $80
