Dana had 60 less chocolate bars than Kathy. Kathy used
34 of her chocolate bars and Dana used
23 of her chocolate bars. In the end, Kathy had 2 times as much as Dana. Find the number of chocolate bars that Kathy had at first.
| |
Kathy |
Dana |
Comparing Kathy
and Parry at first |
|
60 less |
| Before |
4x2 =
8 u |
3 u |
| Change |
- 3x2 =
- 6 u |
- 2 u |
| After |
1x2 =
2 u |
1 u |
Comparing Kathy
and Parry in the end |
2 u |
1 u |
The number of chocolate bars that Kathy had in the end is repeated. Make the number of chocolate bars that Kathy had in the end the same. LCM of 1 and 2 is 2.
Number of chocolate bars that Dana had less than Kathy
= 8 u - 3 u
= 5 u
5 u = 60
1 u = 60 ÷ 5 = 12
Number of chocolate bars that Kathy had at first
= 8 u
= 8 x 12
= 96
Answer(s): 96
