Sabrina and Jen collected stickers. Sabrina gave 40% of her stickers to Jen. As a result, Jen's stickers increased by 75%. If Sabrina had 63 stickers left, find the total number of stickers the two girls had at first.
| |
Sabrina |
Jen |
Comparing the change
in Jen's stickers |
| Before |
5x3 =
15 u |
|
4x2 =
8 u |
| Change |
- 2x3 =
- 6 u |
+ 2x3 =
+ 6 u |
+ 3x2 =
+ 6 u |
| After |
3x3 =
9 u |
|
7x2 =
14 u |
40% =
40100 =
25 75% =
75100 =
34 The number of stickers that Sabrina gave to Jen is repeated. Make the number of stickers that Sabrina gave to Jen the same. LCM of 2 and 3 is 6.
Number of stickers that Sabrina had in the end = 9 u
9 u = 63
1 u = 63 ÷ 9 = 7
Number of stickers that Sabrina and Jen had at first
= 15 u + 8 u
= 23 u
= 23 x 7
= 161
Answer(s): 161
