Pamela had 12 less chocolate bars than Ivory. Ivory used
34 of her chocolate bars and Pamela used
45 of her chocolate bars. In the end, Ivory had 2 times as much as Pamela. Find the number of chocolate bars that Ivory had at first.
| |
Ivory |
Pamela |
Comparing Ivory
and Parry at first |
|
12 less |
| Before |
4x2 =
8 u |
5 u |
| Change |
- 3x2 =
- 6 u |
- 4 u |
| After |
1x2 =
2 u |
1 u |
Comparing Ivory
and Parry in the end |
2 u |
1 u |
The number of chocolate bars that Ivory had in the end is repeated. Make the number of chocolate bars that Ivory had in the end the same. LCM of 1 and 2 is 2.
Number of chocolate bars that Pamela had less than Ivory
= 8 u - 5 u
= 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Number of chocolate bars that Ivory had at first
= 8 u
= 8 x 4
= 32
Answer(s): 32
