Julie has some pens. She has 13 less pens in Box X than in Box Y. After 19 pens were transferred from Box Y to Box X, there were 85 pens in Box Y.
- How many pens were there in Box Y at first?
- How many pens were there in Box X in the end?
|
Box X |
Box Y |
Before |
1 u |
1 u + 13 |
Change |
+ 19 |
- 19 |
After |
1 u + 19 |
85 |
(a)
Number of pens in Box Y at first
= 85 + 19
= 104
(b)
Number of pens in Box X at first
= 104 - 13
= 91
Number of pens in Box X in the end
= 91 + 19
= 110
Answer(s): (a) 104; (b) 110