Julie had 231 less jelly beans than Linda. Linda used
78 of her jelly beans and Julie used
23 of her jelly beans. In the end, Linda had 3 times as much as Julie. Find the number of jelly beans that Linda had at first.
| |
Linda |
Julie |
Comparing Linda
and Parry at first |
|
231 less |
| Before |
8x3 =
24 u |
3 u |
| Change |
- 7x3 =
- 21 u |
- 2 u |
| After |
1x3 =
3 u |
1 u |
Comparing Linda
and Parry in the end |
3 u |
1 u |
The number of jelly beans that Linda had in the end is repeated. Make the number of jelly beans that Linda had in the end the same. LCM of 1 and 3 is 3.
Number of jelly beans that Julie had less than Linda
= 24 u - 3 u
= 21 u
21 u = 231
1 u = 231 ÷ 21 = 11
Number of jelly beans that Linda had at first
= 24 u
= 24 x 11
= 264
Answer(s): 264
