Tiffany had 156 more erasers than Jaslyn. After Jaslyn gave away
14 of her erasers, Tiffany had twice as many erasers as Jaslyn. How many erasers did Jaslyn have at first?
| |
Tiffany |
Jaslyn |
Comparing Tiffany
and Jaslyn at first |
156 more |
|
| Before |
6 u |
4 u |
| Change |
|
- 1 u |
| After |
|
3 u |
Comparing Tiffany
and Jaslyn in the end |
2x3 =
6 u |
1x3 =
3 u |
The number of erasers that Tiffany had at first and in the end remains unchanged. Make the number of erasers that Tiffany had the same. LCM of 6 and 2 is 6.
Number of erasers that Tiffany had more than Jaslyn at first
= 6 u - 4 u
= 2 u
2 u = 156
1 u = 156 ÷ 2 = 78
Number of erasers that Jaslyn had at first
= 4 u
= 4 x 78
= 312
Answer(s): 312
