Raeann and Nora collected stickers. Nora gave 80% of her stickers to Raeann. As a result, Raeann's stickers increased by 25%. If Raeann had 60 stickers left, find the total number of stickers the two girls had at first.
| |
Comparing the change
in Nora's stickers |
Nora |
Raeann |
| Before |
5x1 =
5 u |
|
4x4 =
16 u |
| Change |
- 4x1 =
- 4 u |
- 1x4 =
- 4 u |
+ 1x4 =
+ 4 u |
| After |
1x1 =
1 u |
|
5x4 =
20 u |
80% =
80100 =
45 25% =
25100 =
14 The number of stickers that Raeann gave to Nora is repeated. Make the number of stickers that Raeann gave to Nora the same. LCM of 1 and 4 is 4.
Number of stickers that Raeann had in the end = 20 u
20 u = 60
1 u = 60 ÷ 20 = 3
Number of stickers that Nora and Raeann had at first
= 5 u + 16 u
= 21 u
= 21 x 3
= 63
Answer(s): 63
