Lucy has 21 necklaces more than Winnie. If Winnie gives Lucy 7 necklaces, how many less necklaces will Winnie have than Lucy?
|
Winnie |
Lucy |
Before |
1 u |
1 u + 21 |
Change |
- 7 |
+ 7 |
After |
1 u - 7 |
1 u + 28 |
Before
Number of necklaces that Winnie has at first = 1 u
Number of necklaces that Lucy has at first = 1 u + 21
After
Number of necklaces that Winnie will have in the end = 1 u - 7
Number of necklaces that Lucy will have in the end = 1 u + 21 + 7 = 1 u + 28
Number of necklaces that Winnie will have less than Lucy
= 28 + 7
= 35
Answer(s): 35