Question
At a factory, Oliver could assemble 9 toy helicopters in a day while Zeph could assemble 3 more toy helicopters than him in a day. If Zeph was absent for 2 days, how many days would he need to assemble 16 more toy helicopters than Oliver?
3 m

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At a factory, Oliver could assemble 9 toy helicopters in a day while Zeph could assemble 3 more toy helicopters than him in a day. If Zeph was absent for 2 days, how many days would he need to assemble 16 more toy helicopters than Oliver?