4. Consider question 3. Let say there is a new person, Ken in the team and now the coach of the swimming team needs to assign four swimmers out of five candidates to the strokes. The swimmers and the best times (in seconds) they have achieved in each of the strokes (for 50 yards) are Stroke Carl Chris David Tony Ken Backstroke 37.7 32.9 33.8 37.0 Breaststroke 43.4 33.1 42.2 34.7 41.8 Butterfly 33.3 28.5 38.9 30.4 33.6 Freestyle 29.2 26.4 29.6 28.5 31.1 To minimize the team's time for the race, assign each swimmer for a stroke and obtain an optimal solution. Solve this problem only using Excel Solver. 35.4