Anna and Wendy have 380 stamps altogether. Wendy has thrice as many stamps as Anna. How many stamps must Wendy give to Anna so that they have the same number of stamps?
| |
Anna |
Wendy |
Total |
| Before |
1 u |
3 u |
380 |
| Change |
+ ? |
- ? |
|
| After |
190 |
190 |
380 |
Total number of stamps that Anna and Wendy have
= 1 u + 3 u
= 4 u
4 u = 380
1 u = 380 ÷ 4 = 95
Number of stamps that Anna and Wendy each has in the end
= 380 ÷ 2
= 190
Number of stamps that Wendy must give to Anna
= 190 - 95
= 95
Answer(s): 95
