Cathy had 252 stickers. Oscar had 47 of what Cathy had. After Cathy used some of his stickers and Oscar used 16 of his stickers, Cathy had 15 as many stickers left as Oscar.
- How many stickers did Oscar have at first?
- How many stickers did Cathy use?
|
Cathy |
Oscar |
Before |
252 |
144 |
Change |
- ? |
- 24 |
After |
24 |
120 |
(a)
Number of stickers that Oscar had at first
=
47 x 252
= 144
(b)
Number of stickers that Oscar used
=
16 x 144
= 24
Number of stickers that Oscar had left
= 144 - 24
= 120
Number of stickers that Cathy had left
=
15 x 120
= 24
Number of stickers that Cathy used
= 252 - 24
= 228
Answer(s): (a) 144; (b) 228