A topic you 'somewhat know' is a topic you don't know yet. Be honest about your weak areas.

Time and Work — quick quiz

5 SOF IMO-pattern questions on Time and Work. Instant scoring and solutions, no signup — see where you stand in a few minutes.

Question 1 of 5

Easy

A can complete a work in 12 days and B can complete the same work in 18 days. If both A and B work together, in how many days will they complete the work?