Justin had $207 and Tommy had some money at first. After Justin spent $11 and Tommy spent 30% of his money, they had a total of $336 left. How much money did Tommy have at first?
| |
Justin |
Tommy |
| Before |
$207 |
10 u |
| Change |
- $11 |
- 3 u |
| After |
$196 |
7 u |
30% =
30100 =
310 Amount that Justin had left
= 207 - 11
= $196
Total amount that Justin and Tommy had left = 196 + 7 u
196 + 7 u = 336
7 u = 336 - 196
7 u = 140
1 u = 140 ÷ 7 = 20
Amount that Tommy had at first
= 10 u
= 10 x 20
= $200
Answer(s): $200
