Billy and Simon had $200 at first. Billy spent $50 while Simon spent $36 less than him. The amount Simon had left was
35 of the amount Billy had left. How much did Billy have at first?
| |
Billy |
Simon |
Total |
| Before |
3 u + 50 |
5 u + 14 |
200 |
| Change |
- 50 |
- 14 |
|
| After |
3 u |
5 u |
|
Amount that Simon had spent
= 50 - 36
= $14
Total amount that Billy and Simon had at first
= 3 u + 50 + 5 u + 14
= 8 u + 64
8 u + 64 = 200
8 u = 200 - 64
8 u = 136
1 u = 136 ÷ 8 = 17
Amount that Billy had at first
= 5 u + 50
= 5 x 17 + 50
= 85 + 50
= $135
Answer(s): $135
