Cody had
49 as many pens as Xuan. After Cody bought another 62 pens, he had 18 less pens than Xuan. How many pens did Cody have at first?
|
Cody |
Xuan |
Before |
4 u |
9 u |
Change |
+ 62 |
|
After |
4 u + 62 |
9 u |
Xuan had 18 more pens than Cody in the end. So, if Cody had another 18 pens, he would have the same number of pens as Xuan.
9 u = 4 u + 62 + 18
9 u - 4 u = 62 + 18
5 u = 80
1 u = 80 ÷ 5 = 16
Number of pens that Cody had at first
= 4 u
= 4 x 16
= 64
Answer: 64