Vincent and Daniel had a total of 120 stamps. Daniel had half as many stamps as Vincent. How many stamps must Vincent give to Daniel so they have an equal number of stamps?
| |
Vincent |
Daniel |
Total |
| Before |
2 u |
1 u |
120 |
| Change |
- ? |
+ ? |
|
| After |
1 |
1 |
|
Total number of stamps at first = 3 u
1 u = 120 ÷ 3 = 40
Vincent and Daniel have an equal number of stamps in the end.
Number of stamps that Daniel has in the end
= 120 ÷ 2
= 60
Number of stamps that Vincent must give to Daniel
= 60 - 40
= 20
Answer(s): 20
