Cindy and Olivia have 404 stamps altogether. Olivia has thrice as many stamps as Cindy. How many stamps must Olivia give to Cindy so that they have the same number of stamps?
| |
Cindy |
Olivia |
Total |
| Before |
1 u |
3 u |
404 |
| Change |
+ ? |
- ? |
|
| After |
202 |
202 |
404 |
Total number of stamps that Cindy and Olivia have
= 1 u + 3 u
= 4 u
4 u = 404
1 u = 404 ÷ 4 = 101
Number of stamps that Cindy and Olivia each has in the end
= 404 ÷ 2
= 202
Number of stamps that Olivia must give to Cindy
= 202 - 101
= 101
Answer(s): 101
