Yoko and Olivia shared some earpins. Yoko's share was 40% of Olivia's share. She then increased her share of the earpins by taking 20% of Olivia's share. Given that Yoko had 29 fewer earpins than Olivia in the end, how many earpins did the girls have altogether?
| |
Yoko |
Olivia |
Difference |
Total |
| Before |
2 u |
5 u |
|
7 u |
| Change |
+ 1 u |
- 1 u |
|
|
| After |
3 u |
4 u |
1 u |
7 u |
40% =
40100 =
25Number of earpins that Yoko took from Olivia
= 20% x 5 u
=
20100 x 5 u
= 1 u
Number of fewer earpins that Yoko had than Olivia in the end = 1 u
1 u = 29
1 u = 29 ÷ 1 = 29
Total number of earpins that the girls had
= 7 u
= 7 x 29
= 203
Answer(s): 203
