Jade has 4 times as many buttons as Julie. Julie has
25 as many buttons as Dana. If the three of them have a total of 45 buttons, how many buttons does Dana have?
| Jade |
Julie |
Dana |
| 4x2 |
1x2 |
|
| |
2x1 |
5x1 |
| 8 u |
2 u |
5 u |
The number of buttons that Julie has is repeated. Make the number of buttons that Julie has the same. LCM of 1 and 2 is 2.
Total number of buttons that the three of them have
= 8 u + 2 u + 5 u
= 15 u
15 u = 45
1 u = 45 ÷ 15 = 3
Number of buttons that Dana has
= 5 u
= 5 x 3
= 15
Answer(s): 15
