Sandy can do a job in 15 days and Molly can do…

Sandy can do a job in 15 days and Molly can do the same job in 30 days. If they work together, in how many days will they complete the job?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #57656