Question
Pamela, Dana, Tom and Ivory shared some buttons. Pamela and Dana took 15 of the total number of buttons while Tom and Ivory took the rest. Dana had thrice as many buttons as Pamela and Ivory had 36 buttons. Given that Ivory had twice as many buttons as Dana, how many buttons were there altogether?
4 m

Click button first when a symbol is required. X

Pamela, Dana, Tom and Ivory shared some buttons. Pamela and Dana took 15 of the total number of buttons while Tom and Ivory took the rest. Dana had thrice as many buttons as Pamela and Ivory had 36 buttons. Given that Ivory had twice as many buttons as Dana, how many buttons were there altogether?