Hilda, Kathy and Zoe went shopping together. They brought a total of $1345 with them. Hilda spent 50% of her money. Kathy spent $136 and Zoe spent thrice as much money as Hilda. In the end, they had $525 left. How much money did Kathy and Zoe have altogether in the end?
| |
Hilda |
Kathy |
Zoe |
Total |
| Before |
2 u |
|
|
1345 |
| Change |
- 1 u |
- 136 |
- 3 u |
- 820 |
| After |
1 u |
? |
525 |
50% =
50100 =
12 Hilda spent: Hilda's total = 1 : 2
Amount that Zoe spent
= 3 x 1 u
= 3 u
Amount that the three girls spent
= 1 u + 3 u + 136
= 4 u + 136
Amount that the three girls spent
= 1345 - 525
= $820
4 u + 136 = 820
4 u = 820 - 136
4 u = 684
1 u = 684 ÷ 4 = 171
Amount that Kathy and Zoe had in the end
= 525 - 1 u
= 525 - 1 x 171
= 525 - 171
= $354
Answer(s): $354
