Daniel spent 18 of his money on drinks, 15 of the remaining money on a cake and $36 on balloons. He had 14 of his money. How much money did he have at first?
Drinks |
Remaining amount |
Total |
1x5 |
7x5 |
8x5 |
|
Cake |
Balloons |
Left |
|
|
1x7 |
4x7 |
|
5 u |
7 u |
28 u |
40 u |
Fraction of the amount that Daniel had left after spending on drinks
= 1 -
18 =
78 Fraction of the remaining amount that Daniel had left after spending on a cake
= 1 -
15 =
45 The remaining amount is the combined repeated identity. Make the remaining amount the same. LCM of 7 and 5 is 35.
Amount that Daniel had left
=
14 x 40 u
= 10 u
Amount that Daniel spent on balloons
= 28 u - 10 u
= 18 u
18 u = 36
1 u = 36 ÷ 18 = 2
Total amount that Daniel had at first
= 40 u
= 40 x 2
= $80
Answer(s): $80