Ivory and Lucy shared some nosepins. Ivory's share was 40% of Lucy's share. She then increased her share of the nosepins by taking 20% of Lucy's share. Given that Ivory had 32 fewer nosepins than Lucy in the end, how many nosepins did the girls have altogether?
| |
Ivory |
Lucy |
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 nosepins that Ivory took from Lucy
= 20% x 5 u
=
20100 x 5 u
= 1 u
Number of fewer nosepins that Ivory had than Lucy in the end = 1 u
1 u = 32
1 u = 32 ÷ 1 = 32
Total number of nosepins that the girls had
= 7 u
= 7 x 32
= 224
Answer(s): 224
