Question
At a factory, Ethan could assemble 7 robots in a day while Liam could assemble 4 more robots than him in a day. If Liam was absent for 3 days, how many days would he need to assemble 20 more robots than Ethan?
3 m

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At a factory, Ethan could assemble 7 robots in a day while Liam could assemble 4 more robots than him in a day. If Liam was absent for 3 days, how many days would he need to assemble 20 more robots than Ethan?