Mary has some cards. She has 13 less cards in Box X than in Box Y. After 15 cards were transferred from Box Y to Box X, there were 44 cards in Box Y.
- How many cards were there in Box Y at first?
- How many cards were there in Box X in the end?
|
Box X |
Box Y |
Before |
1 u |
1 u + 13 |
Change |
+ 15 |
- 15 |
After |
1 u + 15 |
44 |
(a)
Number of cards in Box Y at first
= 44 + 15
= 59
(b)
Number of cards in Box X at first
= 59 - 13
= 46
Number of cards in Box X in the end
= 46 + 15
= 61
Answer(s): (a) 59; (b) 61