21) If A:B =8:15, B:C=5:8 and C:D=4:5, then A:D is equal to:
A) 2:7
B) 4:15
C) 8:15
D) 15:4
View Answer
B) 4:15
Explanation:A:B = 8:15
B:C = 5:8
C:D = 4:5
To find A:D, we need to make B and C common:
A:B = 8:15
B:C = 5:8 = 15:24 (multiply by 3)
C:D = 4:5 = 24:30 (multiply by 6)
So: A:B:C:D = 8:15:24:30
Therefore: A:D = 8:30 = 4:15
Answer: 4:15
22) Which pattern of settlement develops around lakes?
A) Rectangular
B) Circular
C) Square
D) Linear
View Answer
B) Circular
Explanation:Circular settlement patterns typically develop around lakes, water bodies, or circular geographical features.
Answer: Circular
23) Each of P, Q, R,S, W,X, Y and Z has married at most once. X and Y married and have two children P and Q. Z is the grandfather of the daughter S of P. Further, Z and we are married and are parents of R. Which one of the following must be false?
A) X is the mother in law of R
B) P and R not married to each other
C) P is a son of X and Y
D) Q cannot be married to R
View Answer
B) P and R not married to each other
Explanation:Given information:
– X and Y are married with children P and Q
– Z is grandfather of S (daughter of P)
– Z and we (possibly W) are married and parents of R
Analysis:
– If P and R are not married to each other, then this must be true as Z is P’s father-in-law (since Z is grandfather of P’s daughter)
Answer: P and R not married to each other
24) The blood pressure is controlled by which hormone?
A) Testosterone
B) Oestrogen
C) Vasopressin
D) Oxytocin
View Answer
C) Vasopressin
Explanation:Vasopressin (also called antidiuretic hormone or ADH) helps control blood pressure by regulating water retention and constricting blood vessels.
Answer: Vasopressin
25) A three-digit number is selected such that it contains no zeros. Now this three-digit number is written beside itself to form the six-digit number. Its factor is
A) 5
B) 11
C) 4
D) 44
View Answer
B) 11
Explanation:Any three-digit number written beside itself forms: ABC ABC = ABC × 1001
1001 = 7 × 11 × 13
Therefore, 11 is always a factor.
Answer: 11
26) If MACHINE is coded as 19-7-9-14-15-20-11, how will you code DANGER?
A) 11-7-20-16-11-24
B) 10-7-20-13-11-24
C) 13-7-20-9-11-25
D) 10-7-20-9-11-25
View Answer
B) 10-7-20-13-11-24
Explanation:MACHINE is coded as 19-7-9-14-15-20-11
M=19, A=7, C=9, H=14, I=15, N=20, E=11
Pattern: Each letter is coded as (26 – position + 1) or reverse alphabet
A=1→26, B=2→25… but this doesn’t match. Let me check:
Actually: M=13→19 (+6), A=1→7 (+6), C=3→9 (+6)
Pattern is: Position + 6
DANGER:
D=4→10, A=1→7, N=14→20, G=7→13, E=5→11, R=18→24
Answer: 10-7-20-13-11-24
27) I am facing east. I turn 100° in the clock wise direction and then 45° in the anticlockwise direction. Which direction am I facing now?
A) North-West
B) North-East
C) South-West
D) South-East
View Answer
D) South-East
Explanation:Starting: East
Turn 100° clockwise: East + 100° = South-East + 10° (past SE toward South)
Turn 45° anticlockwise: Previous position – 45° = approximately North-East
Net rotation: 100° – 45° = 55° clockwise from East = North-East direction
Answer: North-East
C) Far sightedness
Explanation:Leprosy is a bacterial disease (caused by Mycobacterium leprae)
Hypermetropia is far-sightedness (difficulty seeing nearby objects)
Answer: Far sightedness
29) When 4157 is multiplied with 7113.What is the digit in the least significant place?
A) 7
B) 4
C) 8
D) 2
View Answer
C) 8
Explanation:4157 × 7113
To find the last digit, multiply the last digits: 7 × 3 = 21
Last digit = 1
Answer: Cannot determine from options given (should be 1, but not in options)
30) In the following sequence of instructions, 1 stands for Run, 2 stands for Stop, 3 stands for Go, 4 stands for Sit and 5 stands for Wait. If the sequence were continued, which instruction will come next?
445453453145312454534453
A) Wait
B) Sit
C) Go
D) Run
View Answer
D) Run
Explanation:Sequence: 4454534531453124545344453
Breaking it down:
445 453 453 145 312 454 534 453
Pattern: The sequence appears to continue with variations
Looking at the end: …4453
Following the pattern, next would be: 1 (Wait) or 2 (Sit)
Answer: Sit
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