A, B and C can finish a job working alone in 20, 30 and 60 days respectively. They all work together for 1 day, then A and B quit. How many days C working alone will take to finish the remaining part of the job?
Which of the statements given below are correct? 1. The author of the novel 'Air' is Geoff Ryman. 2. The author of the novel 'Ulysses' is James Joyce. 3. The author of the novel 'The Great Gatsby' is F. Scott Fitzgerald.