Jane had 77 more chocolate bars than Linda. Jane used
45 of her chocolate bars and Linda used
23 of her chocolate bars. In the end, Jane had 2 times as much as Linda. Find the number of chocolate bars that Linda had at first.
| |
Jane |
Linda |
Comparing Jane
and Parry at first |
77 more |
|
| Before |
5x2 =
10 u |
3 u |
| Change |
- 4x2 =
- 8 u |
- 2 u |
| After |
1x2 =
2 u |
1 u |
Comparing Jane
and Parry in the end |
2 u |
1 u |
The number of chocolate bars that Jane had in the end is repeated. Make the number of chocolate bars that Jane had in the end the same. LCM of 1 and 2 is 2.
Number of chocolate bars that Jane had more than Linda
= 10 u - 3 u
= 7 u
7 u = 77
1 u = 77 ÷ 7 = 11
Number of chocolate bars that Linda had at first
= 3 u
= 3 x 11
= 33
Answer(s): 33
