Barbara had $22 more than Abi at first. Abi spent
79 of her money and Barbara spent
45 of her money. Given that they had equal amount of money left, how many much did Abi have at first?
| |
Barbara |
Abi |
More |
Before |
9x1 =
9 u |
5x2 =
10 u |
1 u |
Change |
- 7x1 =
- 7 u |
- 4x2 =
- 8 u |
|
After |
2x1 =
2 u |
1x2 =
2 u |
|
Fraction of money that Abi had left
= 1 -
79 =
29 Fraction of money that Barbara had left
= 1 -
45 =
15 The amount that Barbara and Abi had left is the same. Make the amount that Barbara and Abi had left is the same. LCM of 2 and 1 is 2.
Amount that Abi had at first = 9 u
Amount that Barbara had at first = 10 u
Amount that Barbara had more than Abi at first
= 10 u - 9 u
= 1 u
= $22
Amount that Abi had at first
= 9 u
= 9 x 22
= $198
Answer(s): $198
