Oliver spent 18 of his money on balloons, 16 of the remaining money on a pie and $207 on drinks. He had 14 of his money. How much money did he have at first?
Balloons |
Remaining amount |
Total |
1x6 |
7x6 |
8x6 |
|
Pie |
Drinks |
Left |
|
|
1x7 |
5x7 |
|
6 u |
7 u |
35 u |
48 u |
Fraction of the amount that Oliver had left after spending on balloons
= 1 -
18 =
78 Fraction of the remaining amount that Oliver had left after spending on a pie
= 1 -
16 =
56 The remaining amount is the combined repeated identity. Make the remaining amount the same. LCM of 7 and 6 is 42.
Amount that Oliver had left
=
14 x 48 u
= 12 u
Amount that Oliver spent on drinks
= 35 u - 12 u
= 23 u
23 u = 207
1 u = 207 ÷ 23 = 9
Total amount that Oliver had at first
= 48 u
= 48 x 9
= $432
Answer(s): $432