Yen had 74 more stamps than Sarah. After Sarah gave away
14 of her stamps, Yen had twice as many stamps as Sarah. How many stamps did Sarah have at first?
| |
Yen |
Sarah |
Comparing Yen
and Sarah at first |
74 more |
|
| Before |
6 u |
4 u |
| Change |
|
- 1 u |
| After |
|
3 u |
Comparing Yen
and Sarah in the end |
2x3 =
6 u |
1x3 =
3 u |
The number of stamps that Yen had at first and in the end remains unchanged. Make the number of stamps that Yen had the same. LCM of 6 and 2 is 6.
Number of stamps that Yen had more than Sarah at first
= 6 u - 4 u
= 2 u
2 u = 74
1 u = 74 ÷ 2 = 37
Number of stamps that Sarah had at first
= 4 u
= 4 x 37
= 148
Answer(s): 148
