Joelle had 70 more stamps than Nicole. After Nicole gave away
13 of her stamps, Joelle had four times as many stamps as Nicole. How many stamps did Nicole have at first?
| |
Joelle |
Nicole |
Comparing Joelle
and Nicole at first |
70 more |
|
| Before |
8 u |
3 u |
| Change |
|
- 1 u |
| After |
|
2 u |
Comparing Joelle
and Nicole in the end |
4x2 =
8 u |
1x2 =
2 u |
The number of stamps that Joelle had at first and in the end remains unchanged. Make the number of stamps that Joelle had the same. LCM of 8 and 4 is 8.
Number of stamps that Joelle had more than Nicole at first
= 8 u - 3 u
= 5 u
5 u = 70
1 u = 70 ÷ 5 = 14
Number of stamps that Nicole had at first
= 3 u
= 3 x 14
= 42
Answer(s): 42
