Celine collected twice as many erasers as Gabriel did. Julian collected twice as many erasers as Celine did. If they collected 35 erasers in total, how many erasers did Celine collect?
Let x represent the number of erasers Gabriel collected.
Celine collected 2*x erasers.
Julian collected 2*x*2=4*x erasers.
In total, Gabriel, Celine and Julian collected x+2*x+4*x=7*x erasers.
7*x=35
x=<<5=5>>5
Celine collected 5*2=<<5*2=10>>10 erasers.
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