Usha and Esther had equal amount of money. Each day, Usha spent $18 and Esther spent $27. When Usha had $99 left, Esther had
111 as much money left as Usha. How much money did the two girls have at first?
| |
Usha |
Esther |
| Before |
18 u + 99 |
27 u + 9 |
| Change |
- 18 u |
- 27 u |
| After |
$99 |
$9 |
Amount that Esther had left
=
111 x 99
= $9
The amount that Usha and Esther had at first is the same.
27 u + 9 = 18 u + 99
27 u - 18 u = 99 - 9
9 u = 90
1 u = 90 ÷ 9 = 10
Amount that Usha had at first
= 18 u + 99
= 18 x 10 + 99
= 180 + 99
= $279
Total amount that both girls had at first
= 2 x 279
= $558
Answer(s): $558
