Emma and Joelle shared some necklaces. Emma's share was 30% of Joelle's share. She then increased her share of the necklaces by taking 20% of Joelle's share. Given that Emma had 39 fewer necklaces than Joelle in the end, how many necklaces did the girls have altogether?
| |
Emma |
Joelle |
Difference |
Total |
| Before |
3 u |
10 u |
|
13 u |
| Change |
+ 2 u |
- 2 u |
|
|
| After |
5 u |
8 u |
3 u |
13 u |
30% =
30100 =
310Number of necklaces that Emma took from Joelle
= 20% x 10 u
=
20100 x 10 u
= 2 u
Number of fewer necklaces that Emma had than Joelle in the end = 3 u
3 u = 39
1 u = 39 ÷ 3 = 13
Total number of necklaces that the girls had
= 13 u
= 13 x 13
= 169
Answer(s): 169
