Lucy had 162 cards. Dylan had 13 of what Lucy had. After Lucy used some of his cards and Dylan used 13 of his cards, Lucy had 12 as many cards left as Dylan.
- How many cards did Dylan have at first?
- How many cards did Lucy use?
|
Lucy |
Dylan |
Before |
162 |
54 |
Change |
- ? |
- 18 |
After |
18 |
36 |
(a)
Number of cards that Dylan had at first
=
13 x 162
= 54
(b)
Number of cards that Dylan used
=
13 x 54
= 18
Number of cards that Dylan had left
= 54 - 18
= 36
Number of cards that Lucy had left
=
12 x 36
= 18
Number of cards that Lucy used
= 162 - 18
= 144
Answer(s): (a) 54; (b) 144