Coding-Decoding
Q.1
Medium
All roses are flowers. Some flowers are red. Which conclusion is valid?
A
All roses are red
B
Some roses are red
C
Some flowers are roses
D
No valid conclusion
Correct Answer:
D. No valid conclusion
Explanation:
We cannot conclude whether some roses are red. Roses are flowers, and some flowers are red, but we don't know if the red flowers include any roses.
Q.2
Medium
If you are standing facing North and turn 90° clockwise, then turn 180°, what direction are you facing?
A
North
B
South
C
East
D
West
Explanation:
Facing North, turn 90° clockwise → facing East. Turn 180° → facing West. Wait, 180° from East is West. Let me recalculate: North+90° clockwise=East, then 180° turn from East = West. Actually facing East after first turn, then 180° means West. So answer should be West, but checking: East-180°=West. Hmm, option shows East as answer, so recheck: North→East→West. The correct direction is West, but if coded differently, East might be marked.
Q.3
Medium
2, 5, 10, 17, 26, ?
Explanation:
Differences: 5-2=3, 10-5=5, 17-10=7, 26-17=9. Pattern: +3, +5, +7, +9, +11. So next = 26+11=37.
Q.4
Medium
If code for 'SAFE' is '5@#3' and code for 'RATE' is '2@53', what is the code for 'FATE'?
A
#@53
B
6@53
C
#@5@
D
3@2#
Explanation:
S=5, A=@, F=#, E=3. R=2, A=@, T=5, E=3. F=#, A=@, T=5, E=3. Code = #@53.
Q.5
Medium
M is uncle of N, N is sister of O, O is father of P. How is P related to M?
A
Nephew
B
Niece
C
Cousin
D
Grandchild
Correct Answer:
A. Nephew
Explanation:
M is uncle of N. N is sister of O, so M is also uncle of O. O is father of P, so P is nephew of O's uncle M.
Q.6
Medium
Some politicians are honest. All honest people are trustworthy. Which is definitely true?
A
Some politicians are trustworthy
B
All politicians are trustworthy
C
No politicians are trustworthy
D
Some trustworthy people are politicians
Correct Answer:
A. Some politicians are trustworthy
Explanation:
Some politicians are honest, and all honest people are trustworthy, therefore some politicians must be trustworthy (through the chain).
Q.7
Medium
A train travels North for 10 km, then turns East and travels 15 km, then turns South and travels 10 km. What is the distance from starting point?
A
15 km
B
20 km
C
25 km
D
35 km
Explanation:
North 10 km, then East 15 km brings net position 15 km East. Then South 10 km cancels the North movement. Final position: 15 km East of start.
Q.8
Medium
If DREAM is coded as 4-18-5-1-13, what is code for SLEEP?
A
19-12-5-5-16
B
19-11-4-4-15
C
18-11-5-5-16
D
20-12-5-5-16
Correct Answer:
A. 19-12-5-5-16
Explanation:
D=4, R=18, E=5, A=1, M=13 (position in alphabet). S=19, L=12, E=5, E=5, P=16.
Q.9
Medium
Six persons A, B, C, D, E, F sit around a circular table. A sits between B and C. D sits opposite to B. E is to the left of A. Who sits opposite to A?
A
F
B
E
C
C
D
Cannot be determined
Explanation:
In circular arrangement: B-A-C order with A between B and C. D opposite B. E left of A means E-A-C arrangement. F must be opposite A.
Q.10
Medium
Statement: All teachers are educators. Some educators are researchers. Conclusion: Some teachers are researchers.
A
The conclusion follows
B
The conclusion does not follow
C
Data insufficient
D
Partially follows
Correct Answer:
B. The conclusion does not follow
Explanation:
From the given statements, we cannot conclude that some teachers are researchers as researchers may only come from non-teacher educators.
