Yen and Winnie shared some earrings. Yen's share was 35% of Winnie's share. She then increased her share of the earrings by taking 25% of Winnie's share. Given that Yen had 30 fewer earrings than Winnie in the end, how many earrings did the girls have altogether?
| |
Yen |
Winnie |
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 earrings that Yen took from Winnie
= 25% x 20 u
=
25100 x 20 u
= 5 u
Number of fewer earrings that Yen had than Winnie in the end = 3 u
3 u = 30
1 u = 30 ÷ 3 = 10
Total number of earrings that the girls had
= 27 u
= 27 x 10
= 270
Answer(s): 270
