Xylia had 290 stamps. Ethan had 12 of what Xylia had. After Xylia used some of his stamps and Ethan used 15 of his stamps, Xylia had 34 as many stamps left as Ethan.
- How many stamps did Ethan have at first?
- How many stamps did Xylia use?
|
Xylia |
Ethan |
Before |
290 |
145 |
Change |
- ? |
- 29 |
After |
87 |
116 |
(a)
Number of stamps that Ethan had at first
=
12 x 290
= 145
(b)
Number of stamps that Ethan used
=
15 x 145
= 29
Number of stamps that Ethan had left
= 145 - 29
= 116
Number of stamps that Xylia had left
=
34 x 116
= 87
Number of stamps that Xylia used
= 290 - 87
= 203
Answer(s): (a) 145; (b) 203