Mathematics, 16.06.2021 14:50 Mrlittlefish

Alicia can shovel the entire driveway in 30 minutes. If her younger brother Jermaine helps, they can complete the job in 20 minutes. How long would it take Jermaine to shovel the driveway by
himself?

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Alicia can shovel the entire driveway in 30 minutes. If her younger brother Jermaine helps, they ca...