Paris, London, and New Delhi are the capital cities of France, the UK, and India, respectively. Karachi is a major city but not the capital of Pakistan (Islamabad is).
The series intertwines two sequences. Sequence 1 (odd positions): 10, 13, 16, 19, 21 (adding ~3). Sequence 2 (even positions): 5, 10, 20… which doubles each time. The next term in Sequence 2 is 20 x 2 = 40.
63. What is the next term of the sequence 2, 6, 12, 20, 30, 42…
(A) 50
(B) 56
(C) 63
(D) 48
Answer:
(B) 56
Explanation:
The sequence represents the product of consecutive numbers: 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42. The next is 7×8 = 56. Alternatively, the difference increases by 2 (+4, +6, +8, +10, +12, +14).
64. The ages of A and B are in the ratio 3:5. After 9 years the ratio of their ages will be 3:4. The present age of B is
(A) 9 years
(B) 15 years
(C) 20 years
(D) 16 years
Answer:
(B) 15 years
Explanation:
Let present ages be 3x and 5x. (3x + 9) / (5x + 9) = 3 / 4. Cross multiplying: 12x + 36 = 15x + 27, yielding 3x = 9, so x = 3. Present age of B is 5(3) = 15.
65. The marks obtained by a student in five subjects are 68, 72, 62, 58 and 70. Find the average mark.
(A) 66
(B) 65
(C) 68
(D) 70
Answer:
(A) 66
Explanation:
Average = Sum of all marks / total subjects = (68 + 72 + 62 + 58 + 70) / 5 = 330 / 5 = 66.
