3126: Each person's performance compared with all other persons is to be done to rank them subjectively. How many comparisons are needed in total, if there are 11 persons ?
(A) 55
(B) 66
(C) 54
(D) 45
3128: Match List I with List II and select the correct answer using the codes given below the lists :
List I List II
I. Fruit (A) Ovule
II. Seed (B) Leaf
III. Wood (C) Stem
IV. Starch (D) Ovary
Codes:
(a) I-B, II-A, III-C, IV-D
(b) I-D, II-A, III-C, IV-B
(c) I-B, II-C, III-A, IV-D
(d) I-D, II-C, III-A, IV-B