Joelle had 240 stamps. Henry had 12 of what Joelle had. After Joelle used some of his stamps and Henry used 13 of his stamps, Joelle had 15 as many stamps left as Henry.
- How many stamps did Henry have at first?
- How many stamps did Joelle use?
|
Joelle |
Henry |
Before |
240 |
120 |
Change |
- ? |
- 40 |
After |
16 |
80 |
(a)
Number of stamps that Henry had at first
=
12 x 240
= 120
(b)
Number of stamps that Henry used
=
13 x 120
= 40
Number of stamps that Henry had left
= 120 - 40
= 80
Number of stamps that Joelle had left
=
15 x 80
= 16
Number of stamps that Joelle used
= 240 - 16
= 224
Answer(s): (a) 120; (b) 224