Last month, Archie and Penelope had the same amount of savings. This month, Penelope saves $900. As a result, she now has 4 times as much savings as Archie. What are their total savings now?
| |
Archie |
Penelope |
Total |
| Before |
1 u |
1 u |
2 u |
| Change |
|
+ 3 u |
|
| After |
1 u |
4 u |
5 u |
Savings that Archie had last month = 1 u
Savings that Penelope had last month = 1 u
Savings that Archie has this month = 1 u
Savings that Penelope has this month = 4 u
Amount that Penelope saves this month
= 4 u - 1 u
= 3 u
3 u = 900
1 u = 900 ÷ 3 = 300
Total savings that Archie and Penelope have now
= 4 u + 1 u
= 5 u
= 5 x 300
= $1500
Answer(s): $1500
