Seth and Irene share some cards.
311 of Seth's cards is equal to
313 of Irene's cards. Given that Seth has 12 cards less than Irene, how many cards do they have altogether?
311 of Seth's cards = 313 of Irene's cards
Number of Seth's cards = 11 u
Number of Irene's cards = 13 u
Number of cards that Seth has less than Irene
= 13 u - 11 u
= 2 u
2 u = 12
1 u = 12 ÷ 2 = 6
Total number of cards
= 11 u + 13 u
= 24 u
= 24 x 6
= 144
Answer(s): 144
