Julie had 20 less lollipops than Roshel. Roshel used
67 of her lollipops and Julie used
34 of her lollipops. In the end, Roshel had 2 times as much as Julie. Find the number of lollipops that Roshel had at first.
| |
Roshel |
Julie |
Comparing Roshel
and Parry at first |
|
20 less |
| Before |
7x2 =
14 u |
4 u |
| Change |
- 6x2 =
- 12 u |
- 3 u |
| After |
1x2 =
2 u |
1 u |
Comparing Roshel
and Parry in the end |
2 u |
1 u |
The number of lollipops that Roshel had in the end is repeated. Make the number of lollipops that Roshel had in the end the same. LCM of 1 and 2 is 2.
Number of lollipops that Julie had less than Roshel
= 14 u - 4 u
= 10 u
10 u = 20
1 u = 20 ÷ 10 = 2
Number of lollipops that Roshel had at first
= 14 u
= 14 x 2
= 28
Answer(s): 28
