Oscar spent $10 on a coat. He spent
19 of his remaining money on a shirt. If he still had
47 of his money left, how much did he have at first?
Coat |
Remaining amount |
|
Shirt |
Left |
$10 |
1 |
8 |
3x2 |
4x2 |
5 u |
1 u |
8 u |
The amount that Oscar had left is the same. Make the numerators the same. LCM of 4 and 8 is 8.
4x27x2 of his money =
89 of his remaining money
814 of his money =
89 of his remaining money
Amount that Oscar spent on the coat = 5 u
5 u = 10
1 u = 10 ÷ 5 = 2
Amount that Oscar had at first
= 14 u
= 14 x 2
= $28
Answer(s): $28