Gem had 14 more erasers than Jaslyn. After Jaslyn gave away
58 of her erasers, Gem had five times as many erasers as Jaslyn. How many erasers did Jaslyn have at first?
| |
Gem |
Jaslyn |
Comparing Gem and
Jaslyn at first |
14 more |
|
| Before |
15 u |
8 u |
| Change |
|
- 5 u |
| After |
15 u |
3 u |
Comparing Gem and
Jaslyn in the end |
5x3 =
15 u |
1x3 =
3 u |
Number of erasers that Jaslyn had in the end is repeated. Make the number of erasers that Jaslyn had in the end the same. LCM of 1 and 3 is 3.
Number of erasers that Gem had at first = 15 u
Number of erasers that Gem had more than Jaslyn at first
= 15 u - 8 u
= 7 u
7 u = 14
1 u = 14 ÷ 7 = 2
Number of erasers that Jaslyn had at first
= 8 u
= 8 x 2
= 16
Answer(s): 16
