Irene and Japheth went shopping with a total of $100. After Irene spent
47 of her money and Japheth spent
56 of his money, they each had an equal amount of money left. How much money did they spend altogether?
| |
Irene |
Japheth |
Total |
Before |
7 u |
6x3 =
18 u |
$100 |
Change |
- 4 u |
- 5x3 =
- 15 u |
|
After |
3 u |
1x3 =
3 u |
|
The amount that Irene and Japheth each had in the end is the same. Make the amount that each had in the end the same. LCM of 3 and 1 is 3.
Total amount that Irene and Japheth had at first
= 7 u + 18 u
= 25 u
25 u = 100
1 u = 100 ÷ 25 = 4
Total amount that Irene and Japheth spent
= 4 u + 15 u
= 19 u
= 19 x 4
= $76
Answer(s): $76
