Abi had 18 less sweets than Anna. Anna used
34 of her sweets and Abi used
45 of her sweets. In the end, Anna had 2 times as much as Abi. Find the number of sweets that Anna had at first.
|
Anna |
Abi |
Comparing Anna and Parry at first |
|
18 less |
Before |
4x2 = 8 u |
5 u |
Change |
- 3x2 = - 6 u |
- 4 u |
After |
1x2 = 2 u |
1 u |
Comparing Anna and Parry in the end |
2 u |
1 u |
The number of sweets that Anna had in the end is repeated. Make the number of sweets that Anna had in the end the same. LCM of 1 and 2 is 2.
Number of sweets that Abi had less than Anna
= 8 u - 5 u
= 3 u
3 u = 18
1 u = 18 ÷ 3 = 6
Number of sweets that Anna had at first
= 8 u
= 8 x 6
= 48
Answer(s): 48