Archie and Lucy had equal amount of money. Archie spent
12 of his money on a sweater while Lucy spent
23 of her money on a blazer. Given that Lucy spent $13 more than Archie, how much did Archie have at first?
| |
Archie |
Lucy |
| Before |
2x3 =
6 u |
3x2 =
6 u |
| Change |
- 1x3 =
- 3 u |
- 2x2 =
- 4 u |
| After |
1x3 =
3 u |
1x2 =
2 u |
The amount that Archie and Lucy had at first is the same. Make the amount that Archie and Lucy had at first the same. LCM of 2 and 3 is 6.
Amount that Lucy spent more than Archie
= 4 u - 3 u
= 1 u
1 u = 13
Amount that Archie had at first
= 6 u
= 6 x 13
= $78
Answer(s): $78
