Brandon bought some pastries. He bought some croissants with $6.20 more than half his money. He then bought some biscuits with $8.20 less than half of his remaining money. He then had $12.30 left. How much did he pay for the croissants?
| Croissants |
Remaining amount |
| 1 u + $6.20 |
1 u - $6.20 |
| |
Biscuits |
Left |
| |
1 p - $8.20 |
1 p + $8.20 |
| |
|
$12.30 |
Working backwards.
Amount that Brandon had left = 1 p + 8.20
1 p + 8.20 = 12.30
1 p = 12.30 - 8.20 = 4.10
Remaining amount after he bought some croissants
= 2 p
= 2 x 4.10
= $8.20
Remaining amount after he bought some croissants = 1 u - 6.20
1 u - 6.20 = 8.20
1 u = 8.20 + 6.20
1 u = 14.40
Amount that Brandon spent on some croissants
= 1 u + 6.20
= 14.40 + 6.20
= $20.60
Answer(s): $20.60
