Oscar bought some pastries. He bought some puffs with $6.50 more than half his money. He then bought some biscuits with $5.80 less than half of his remaining money. He then had $10.60 left. How much did he pay for the puffs?
| Puffs |
Remaining amount |
| 1 u + $6.50 |
1 u - $6.50 |
| |
Biscuits |
Left |
| |
1 p - $5.80 |
1 p + $5.80 |
| |
|
$10.60 |
Working backwards.
Amount that Oscar had left = 1 p + 5.80
1 p + 5.80 = 10.60
1 p = 10.60 - 5.80 = 4.80
Remaining amount after he bought some puffs
= 2 p
= 2 x 4.80
= $9.60
Remaining amount after he bought some puffs = 1 u - 6.50
1 u - 6.50 = 9.60
1 u = 9.60 + 6.50
1 u = 16.10
Amount that Oscar spent on some puffs
= 1 u + 6.50
= 16.10 + 6.50
= $22.60
Answer(s): $22.60
