Elijah bought some pastries. He bought some wafers with $5.30 more than half his money. He then bought some croissants with $1.70 less than half of his remaining money. He then had $8.60 left. How much did he pay for the wafers?
| Wafers |
Remaining amount |
| 1 u + $5.30 |
1 u - $5.30 |
| |
Croissants |
Left |
| |
1 p - $1.70 |
1 p + $1.70 |
| |
|
$8.60 |
Working backwards.
Amount that Elijah had left = 1 p + 1.70
1 p + 1.70 = 8.60
1 p = 8.60 - 1.70 = 6.90
Remaining amount after he bought some wafers
= 2 p
= 2 x 6.90
= $13.80
Remaining amount after he bought some wafers = 1 u - 5.30
1 u - 5.30 = 13.80
1 u = 13.80 + 5.30
1 u = 19.10
Amount that Elijah spent on some wafers
= 1 u + 5.30
= 19.10 + 5.30
= $24.40
Answer(s): $24.40
