Emily and Betty shared some earpins. Emily's share was 35% of Betty's share. She then increased her share of the earpins by taking 25% of Betty's share. Given that Emily had 39 fewer earpins than Betty in the end, how many earpins did the girls have altogether?
| |
Emily |
Betty |
Difference |
Total |
| Before |
7 u |
20 u |
|
27 u |
| Change |
+ 5 u |
- 5 u |
|
|
| After |
12 u |
15 u |
3 u |
27 u |
35% =
35100 =
720Number of earpins that Emily took from Betty
= 25% x 20 u
=
25100 x 20 u
= 5 u
Number of fewer earpins that Emily had than Betty in the end = 3 u
3 u = 39
1 u = 39 ÷ 3 = 13
Total number of earpins that the girls had
= 27 u
= 27 x 13
= 351
Answer(s): 351
