Yesterday, Ian had 33 more coins than Glen. Today, Ian gave Glen
49 of his coins. As a result, he has half as many coins as Glen now. How many coins did Ian have yesterday?
| |
Ian |
Glen |
More |
| Before |
9 u |
6 u |
3 u |
| Change |
- 4 u |
+ 4 u |
|
| After |
5 u |
10 u |
|
Comparing Ian and
Glen in the end |
1
|
2
|
|
Number of coins that Glen has now
= 2 x 5 u
= 10 u
Number of coins that Ian had more than Glen yesterday
= 9 u - 6 u
= 3 u
3 u = 33
1 u = 33 ÷ 3 = 11
Number of coins that Ian had yesterday
= 9 u
= 9 x 11
= 99
Answer(s): 99
