Sam had some cards. He gave
23 of his cards to Luis and bought 4 new cards. After that, he gave
59 of his remaining cards to his sister and bought another 7 new cards. In the end, Sam had 35 cards.
- How many cards did Sam give to his sister?
- How many cards did Sam have at first?
(a)
Fraction of his remaining cards after he gave to his sister
= 1 -
59=
49 49 of his remaining cards = 35 - 7 = 28
19 of his remaining cards = 28 ÷ 4 = 7
59 of his remaining cards = 5 x 7 = 35
Number of cards that Sam gave to his sister = 35
(b)
99 of his remaining cards = 9 x 7 = 63
Fraction of his total cards after he gave to Luis
= 1 -
23=
13 13 of his total cards = 63 - 4 = 59
33 of his total cards = 3 x 59 = 177
Number of cards that Sam had at first = 177
Answer(s): (a) 35; (b) 177
