Dylan had
35 as many pens as Olivia. After Dylan gave away 44 pens, he had 78 less pens than Olivia. How many pens did Olivia have?
|
Dylan |
Olivia |
Before |
3 u |
5 u |
Change |
- 44 |
|
After |
3 u - 44 |
5 u |
Olivia had 78 more pens than Dylan in the end. So, if Dylan had another 78 pens, he would have the same number of pens as Olivia.
5 u = 3 u - 44 + 78
5 u - 3 u = 78 - 44
2 u = 34
1 u = 34 ÷ 2 = 17
Number of pens that Olivia had at first
= 5 u
= 5 x 17
= 85
Answer: 85