Cindy had 168 less sweets than Ivory. Ivory used
78 of her sweets and Cindy used
12 of her sweets. In the end, Ivory had 2 times as much as Cindy. Find the number of sweets that Ivory had at first.
| |
Ivory |
Cindy |
Comparing Ivory
and Parry at first |
|
168 less |
| Before |
8x2 =
16 u |
2 u |
| Change |
- 7x2 =
- 14 u |
- 1 u |
| After |
1x2 =
2 u |
1 u |
Comparing Ivory
and Parry in the end |
2 u |
1 u |
The number of sweets that Ivory had in the end is repeated. Make the number of sweets that Ivory had in the end the same. LCM of 1 and 2 is 2.
Number of sweets that Cindy had less than Ivory
= 16 u - 2 u
= 14 u
14 u = 168
1 u = 168 ÷ 14 = 12
Number of sweets that Ivory had at first
= 16 u
= 16 x 12
= 192
Answer(s): 192
