Lucy had 14 more lollipops than Irene. Lucy used
45 of her lollipops and Irene used
23 of her lollipops. In the end, Lucy had 2 times as much as Irene. Find the number of lollipops that Irene had at first.
| |
Lucy |
Irene |
Comparing Lucy
and Parry at first |
14 more |
|
| Before |
5x2 =
10 u |
3 u |
| Change |
- 4x2 =
- 8 u |
- 2 u |
| After |
1x2 =
2 u |
1 u |
Comparing Lucy
and Parry in the end |
2 u |
1 u |
The number of lollipops that Lucy had in the end is repeated. Make the number of lollipops that Lucy had in the end the same. LCM of 1 and 2 is 2.
Number of lollipops that Lucy had more than Irene
= 10 u - 3 u
= 7 u
7 u = 14
1 u = 14 ÷ 7 = 2
Number of lollipops that Irene had at first
= 3 u
= 3 x 2
= 6
Answer(s): 6
