Question
At a factory, Jeremy could assemble 6 toy helicopters in a day while Zane could assemble 4 more toy helicopters than him in a day. If Zane was absent for 2 days, how many days would he need to assemble 21 more toy helicopters than Jeremy?
3 m

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At a factory, Jeremy could assemble 6 toy helicopters in a day while Zane could assemble 4 more toy helicopters than him in a day. If Zane was absent for 2 days, how many days would he need to assemble 21 more toy helicopters than Jeremy?