There are 50 employees in a post office working in three shifts. The first group of 17 employees work from 07:00 AM to 01:00 PM. The second group of 13 employees work from 09:00 AM to 03:00 PM. The third group of 20 employees work from 11:00 AM to 05:00 PM. If there are only 24 computers available, find the time during which the computers are likely to be used the most?
Stormy has a 6m long rope. He cuts it into 3 pieces, i.e., p, q, and r. Rope p is 18m long. Rope q is 15m longer than the rope p. Find the length of the rope r.