Vanessa, Anna, Eric and Cindy shared some buttons. Vanessa and Anna took
15 of the total number of buttons while Eric and Cindy took the rest. Anna had four times as many buttons as Vanessa and Cindy had 144 buttons. Given that Cindy had four times as many buttons as Anna, how many buttons were there altogether?
Vanessa |
Anna |
Eric |
Cindy |
Total |
1x5 |
4x5 |
5x5 |
1 |
4 |
|
|
|
|
1x4 |
|
4x4 |
|
1 u |
4 u |
4 u |
16 u |
25 u |
Number of buttons that Anna had is repeated. Make the number of buttons that Anna had the same. LCM of 4 and 1 is 4.
Number of buttons that Cindy had = 16 u
16 u = 144
1 u = 144 ÷ 16 = 9
Total number of buttons
= 25 u
= 25 x 9
= 225
Answer(s): 225