Min had 13 more tarts than Victoria at first. After Min ate 3 tarts, she had thrice as many tarts as Victoria in the end. How many tarts did Victoria have?
| |
Victoria |
Min |
| Before |
1 u |
1 u + 13 |
| Change |
|
- 3 |
| After |
1 u |
1 u + 10 |
Comparing Victoria
and Min in the end |
1 u |
3 u |
The number of tarts that Victoria had remains unchanged.
Number of tarts that Min had in the end
= 3 x 1 u
= 3 u
3 u = 1 u + 10
3 u - 1 u = 10
2 u = 10
1 u = 10 ÷ 2 = 5
Number of tarts that Victoria had
= 1 u
= 5
Answer(s): 5
