Kathy has 2 times as many buttons as Jane. Jane has
67 as many buttons as Raeann. If the three of them have a total of 300 buttons, how many buttons does Kathy have?
Kathy |
Jane |
Raeann |
2x6 |
1x6 |
|
|
6x1 |
7x1 |
12 u |
6 u |
7 u |
The number of buttons that Jane has is repeated. Make the number of buttons that Jane has the same. LCM of 1 and 6 is 6.
Total number of buttons that the three of them have
= 12 u + 6 u + 7 u
= 25 u
25 u = 300
1 u = 300 ÷ 25 = 12
Number of buttons that Kathy has
= 12 u
= 12 x 12
= 144
Answer(s): 144