Risa had 132 less lollipops than Kathy. Kathy used
67 of her lollipops and Risa used
12 of her lollipops. In the end, Kathy had 2 times as much as Risa. Find the number of lollipops that Kathy had at first.
| |
Kathy |
Risa |
Comparing Kathy
and Parry at first |
|
132 less |
| Before |
7x2 =
14 u |
2 u |
| Change |
- 6x2 =
- 12 u |
- 1 u |
| After |
1x2 =
2 u |
1 u |
Comparing Kathy
and Parry in the end |
2 u |
1 u |
The number of lollipops that Kathy had in the end is repeated. Make the number of lollipops that Kathy had in the end the same. LCM of 1 and 2 is 2.
Number of lollipops that Risa had less than Kathy
= 14 u - 2 u
= 12 u
12 u = 132
1 u = 132 ÷ 12 = 11
Number of lollipops that Kathy had at first
= 14 u
= 14 x 11
= 154
Answer(s): 154
