SOF IMO · Time and Work · Quiz
5 real SOF IMO questions on Time and Work. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
MEDIUMA and B can complete a work in 10 days. B and C can complete the same work in 15 days. A and C can complete it in 12 days. In how many days can A, B and C together complete the work?