Question
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.
  1. How many cards were there in Box Y at first?
  2. How many cards were there in Box X in the end?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

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.
  1. How many cards were there in Box Y at first?
  2. How many cards were there in Box X in the end?