User ID Password  Forgot Password    General Knowledge  English  Quantitative Aptitude  Data Interpretation  Oracle Certification  Linux Certification  CAT Mock Test  Mock Test  User Test   Home Register Sample Test Make Money Panchatantra Refer a Friend Create Test OnLine Course FeedBack       1 In rPQR, QR = 10, RP = 11 and PQ = 12. D is the mid-point of PR. DE is drawn parallel to PQ meeting QR in E. EF is drawn parallel to RP meeting PQ in F. What is the length of DF? 11/2 6 33/4 5