Caden had
38 as many erasers as Cindy. After Caden bought another 73 erasers, he had 17 less erasers than Cindy. How many erasers did Caden have at first?
|
Caden |
Cindy |
Before |
3 u |
8 u |
Change |
+ 73 |
|
After |
3 u + 73 |
8 u |
Cindy had 17 more erasers than Caden in the end. So, if Caden had another 17 erasers, he would have the same number of erasers as Cindy.
8 u = 3 u + 73 + 17
8 u - 3 u = 73 + 17
5 u = 90
1 u = 90 ÷ 5 = 18
Number of erasers that Caden had at first
= 3 u
= 3 x 18
= 54
Answer: 54