Ahmad had $134 and Archie had some money at first. After Ahmad spent $21 and Archie spent 10% of his money, they had a total of $176 left. How much money did Archie have at first?
| |
Ahmad |
Archie |
| Before |
$134 |
10 u |
| Change |
- $21 |
- 1 u |
| After |
$113 |
9 u |
10% =
10100 =
110 Amount that Ahmad had left
= 134 - 21
= $113
Total amount that Ahmad and Archie had left = 113 + 9 u
113 + 9 u = 176
9 u = 176 - 113
9 u = 63
1 u = 63 ÷ 9 = 7
Amount that Archie had at first
= 10 u
= 10 x 7
= $70
Answer(s): $70
