Roshel had 60 more chocolate bars than Winnie. Roshel used
56 of her chocolate bars and Winnie used
23 of her chocolate bars. In the end, Roshel had 3 times as much as Winnie. Find the number of chocolate bars that Winnie had at first.
| |
Roshel |
Winnie |
Comparing Roshel
and Parry at first |
60 more |
|
| Before |
6x3 =
18 u |
3 u |
| Change |
- 5x3 =
- 15 u |
- 2 u |
| After |
1x3 =
3 u |
1 u |
Comparing Roshel
and Parry in the end |
3 u |
1 u |
The number of chocolate bars that Roshel had in the end is repeated. Make the number of chocolate bars that Roshel had in the end the same. LCM of 1 and 3 is 3.
Number of chocolate bars that Roshel had more than Winnie
= 18 u - 3 u
= 15 u
15 u = 60
1 u = 60 ÷ 15 = 4
Number of chocolate bars that Winnie had at first
= 3 u
= 3 x 4
= 12
Answer(s): 12
