Dana had 220 less chocolate bars than Gwen. Gwen used
56 of her chocolate bars and Dana used
34 of her chocolate bars. In the end, Gwen had 4 times as much as Dana. Find the number of chocolate bars that Gwen had at first.
|
Gwen |
Dana |
Comparing Gwen and Parry at first |
|
220 less |
Before |
6x4 = 24 u |
4 u |
Change |
- 5x4 = - 20 u |
- 3 u |
After |
1x4 = 4 u |
1 u |
Comparing Gwen and Parry in the end |
4 u |
1 u |
The number of chocolate bars that Gwen had in the end is repeated. Make the number of chocolate bars that Gwen had in the end the same. LCM of 1 and 4 is 4.
Number of chocolate bars that Dana had less than Gwen
= 24 u - 4 u
= 20 u
20 u = 220
1 u = 220 ÷ 20 = 11
Number of chocolate bars that Gwen had at first
= 24 u
= 24 x 11
= 264
Answer(s): 264