Yesterday, Ian had 16 more stamps than Michael. Today, Ian gave Michael
35 of his stamps. As a result, he has half as many stamps as Michael now. How many stamps did Ian have yesterday?
| |
Ian |
Michael |
More |
| Before |
5 u |
1 u |
4 u |
| Change |
- 3 u |
+ 3 u |
|
| After |
2 u |
4 u |
|
Comparing Ian and
Michael in the end |
1
|
2
|
|
Number of stamps that Michael has now
= 2 x 2 u
= 4 u
Number of stamps that Ian had more than Michael yesterday
= 5 u - 1 u
= 4 u
4 u = 16
1 u = 16 ÷ 4 = 4
Number of stamps that Ian had yesterday
= 5 u
= 5 x 4
= 20
Answer(s): 20
