Lucy had 72 less jelly beans than Sabrina. Sabrina used
56 of her jelly beans and Lucy used
23 of her jelly beans. In the end, Sabrina had 2 times as much as Lucy. Find the number of jelly beans that Sabrina had at first.
| |
Sabrina |
Lucy |
Comparing Sabrina
and Parry at first |
|
72 less |
| Before |
6x2 =
12 u |
3 u |
| Change |
- 5x2 =
- 10 u |
- 2 u |
| After |
1x2 =
2 u |
1 u |
Comparing Sabrina
and Parry in the end |
2 u |
1 u |
The number of jelly beans that Sabrina had in the end is repeated. Make the number of jelly beans that Sabrina had in the end the same. LCM of 1 and 2 is 2.
Number of jelly beans that Lucy had less than Sabrina
= 12 u - 3 u
= 9 u
9 u = 72
1 u = 72 ÷ 9 = 8
Number of jelly beans that Sabrina had at first
= 12 u
= 12 x 8
= 96
Answer(s): 96
