Gabriel spent 15 of his money on drinks, 16 of the remaining money on a pie and $20 on balloons. He had 13 of his money. How much money did he have at first?
Drinks |
Remaining amount |
Total |
1x3 |
4x3 |
5x3 |
|
Pie |
Balloons |
Left |
|
|
1x2 |
5x2 |
|
3 u |
2 u |
10 u |
15 u |
Fraction of the amount that Gabriel had left after spending on drinks
= 1 -
15 =
45 Fraction of the remaining amount that Gabriel 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 4 and 6 is 12.
Amount that Gabriel had left
=
13 x 15 u
= 5 u
Amount that Gabriel spent on balloons
= 10 u - 5 u
= 5 u
5 u = 20
1 u = 20 ÷ 5 = 4
Total amount that Gabriel had at first
= 15 u
= 15 x 4
= $60
Answer(s): $60