Opal had 16 more stamps than Nicole. After Nicole gave away
16 of her stamps, Opal had twice as many stamps as Nicole. How many stamps did Nicole have at first?
| |
Opal |
Nicole |
Comparing Opal and
Nicole at first |
16 more |
|
| Before |
10 u |
6 u |
| Change |
|
- 1 u |
| After |
10 u |
5 u |
Comparing Opal and
Nicole in the end |
2x5 =
10 u |
1x5 =
5 u |
Number of stamps that Nicole had in the end is repeated. Make the number of stamps that Nicole had in the end the same. LCM of 1 and 5 is 5.
Number of stamps that Opal had at first = 10 u
Number of stamps that Opal had more than Nicole at first
= 10 u - 6 u
= 4 u
4 u = 16
1 u = 16 ÷ 4 = 4
Number of stamps that Nicole had at first
= 6 u
= 6 x 4
= 24
Answer(s): 24
