In a class of 200 students, who appeared certain examination, 35 students failed in CET, 40 in NEET and 40 in JEE, 20 failed in CET and NEET, 17 in NEET and JEE, 15 in CET and JEE and 5 failed in all three examinations. Find how many stydents, (i) did not fail in any entrance examination (ii) Failed in NEET or JEE