21. The number of leap years from 1801 to 2000 are :
50
48
47
None of these
22. If R.A.C.E = –4.13.11.9 and C.O.L.U.M.N = 11.–1.2.–7.1.0, then B.R.A.C.K.E.T =
12.–4.13.11.4.9.–5
12.–4.13.11.3.9.–5
12.–4.13.11.4.9.–6
12.–4.13.11.3.9.–6
23. What is the missing number in the following sequence ? 7, 22, 44, ?, 158
84
88
96
114
24. Four friends P, Q, R and S live in the same locality. The house of Q is in the east of P’s house but in the north of R’s house. The house of R is in the west of S’s house. S’s house is in which direction of P’s house ?
South-east
North-west
North-east
Data is inadequate
25. Ms. Neelam likes to let her students choose who their partners will be for study during the course; however, no pair of students may work together more than seven class periods in a row. Anish and Boman have studied together seven class periods in a row. Cathy and Dodo have worked together three class periods in a row. Cathy does not want to work with Anish. Who should be assigned to work with Boman ?
Neelam
Anish
Dodo
Cathy