In this question there is six sentences of a passage. The first and sixth sentences are given in the beginning as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly. S1 : Regular exercise makes many of the organ systems become more efficient. S6 : Different activities require different levels of fitness. P : It can improve your strength; make your body more flexible and less likely to suffer from sprain. Q : It can also improve your endurance. R : It also uses up energy and helps to prevent large amounts of fat building up in the body. S : Exercise can increase your fitness in three ways.