The average of 10 and 20 is?
Correct answer is: B. 15
Average = (10+20)/2 = 15.
If 25% of a number is 20, then number is?
Correct answer is: C. 80
25% of x = 20 → x = 20 × 100/25 = 80.
What comes next? 1,1,2,3,5,8,13?
Correct answer is: B. 21
Fibonacci sequence: 1,1,2,3,5,8,13,21 (each number is sum of two preceding).
What comes next? 1,4,4,16,64,?
Correct answer is: C. 1024
Pattern: 1×4=4, 4×4=16, 16×4=64, 64×4=256? Wait, 256 is option A but pattern suggests 64×4=256? Actually sequence: 1,4,4,16,64... 1×4=4, 4×1=4, 4×4=16, 16×4=64, 64×16=1024.
A cube is painted on all sides and sliced into 64 smaller cubes, how many cubes have no paint?
Correct answer is: A. 8
For 4×4×4 cube: 64 small cubes. Cubes with no paint = inner 2×2×2 = 8 cubes.
If it takes 6 men 8 hours to dig a hole, how many hours would it take 4 men working at same rate?
Correct answer is: B. 12
6 men × 8 hours = 48 man-hours. 4 men need 48/4 = 12 hours.
If a man walks 3 km north, 4 km east, then 3 km south, how many kms is he from starting point?
Correct answer is: A. 4
Net displacement: 3N then 3S cancels, 4E remains → 4 km from start.
A person shall be disqualified on the grounds of defection etc under Article — of the Constitution.
Correct answer is: D. 63-A
Article 63-A deals with disqualification on grounds of defection.
Election to fill seats in the Senate allocated to each Province shall be held in accordance with system by means single transferable vote?
Correct answer is: A. Proportional representation
Senate elections use Proportional Representation with Single Transferable Vote.