Jack and Ryan had a total of 180 stamps at first. After Jack bought 27 more stamps and Ryan gave away 11 stamps, Jack now has the same number of stamps as Ryan. How many stamps did Jack have at first?
| |
Jack |
Ryan |
Total |
| Before |
1 u - 27 |
1 u + 11 |
180 |
| Change |
+ 27 |
- 11 |
|
| After |
1 u |
1 u |
196 |
Total number of stamps in the end
= 180 + 27 - 11
= 196
2 u = 196
1 u = 196 ÷ 2 = 98
Number of stamps that Jack had in the end
= 1 u
= 98
Number of stamps that Jack had at first
= 98 - 27
= 71
Answer(s): 71
