Min and Abi had the same amount of money at first. After Min gave $20 to her child, Abi had 3 times as much money as Min. How much did Min have in the end?
| |
Min |
Abi |
| Before |
1x3 =
3 u |
1x3 =
3 u |
| Change |
- $20 |
|
| After |
1 u |
3 u |
The amount that Abi had at first and in the end remains unchanged. Make the amount that Abi had the same. LCM of 1 and 3 is 3.
Amount that Min gave to her child
= 3 u - 1 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Amount that Min had in the end
= 1 u
= $20
Answer(s): $20
