Seven students P, Q, R, S, T, U, V stand in a line. T is 4th from left. P is 2 positions to the left of T. V is 2nd from right. Q is between P and S. Where is R?
Answer: A
T at 4, P at 2, V at 6 (2nd from right in 7). Q between P(2) and S: possibly 3. Remaining: R at 5 or 7. V at 6 means R at 5 or 7. Given Q between P and S, arrangement: P-Q-S-T-?-V-R gives R at 6, or P-Q-S-T-R-V-U gives R at 5. Correcting: R at position 6.
Q.83Medium
All doctors are intelligent. Some intelligent people are rich. Conclusion: Some doctors are rich. Is this conclusion valid?
Answer: B
Doctors are intelligent, but not necessarily among the 'some intelligent people who are rich.' The conclusion is logically invalid.
In a logic puzzle, 6 boxes are arranged left to right. Red box is 3 positions from left. Green is 2 right of Yellow. Blue is immediate left of Red. If there are only 4 colors, where is Yellow?
Answer: A
Red at 3, Blue at 2. Green 2 right of Yellow: if Yellow at 1, Green at 3. But Red at 3. If Yellow at 4, Green at 6. This works: Blue(2), Red(3), Yellow(4), Green(6). Yellow at position 4... Rechecking: Yellow could be at 1 if Green at 3, but Red there. So Yellow at 4.
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Q.86Medium
In a certain code language, MATHEMATICS is written as LZSGZLJBHRD. How is SCIENCE written in that code?
Answer: B
Each letter is shifted backward by 1 position in the alphabet. S→R, C→B, I→H, E→D, N→M, C→B, E→D. The pattern gives RDHNCBD.
Q.87Easy
If A is the brother of B, C is the daughter of B, D is the brother of C, then what is the relationship between A and D?
Answer: A
A is brother of B, so B is A's sibling. C is daughter of B (A's sibling), and D is brother of C. Therefore, D is the child of B (A's sibling), making A the uncle of D.
Q.88Easy
In a class of 40 students, some play cricket, some play football, and some play both. If 25 play cricket and 20 play football, how many play both?
Answer: B
Using set theory: Total = Cricket + Football - Both. 40 = 25 + 20 - Both. Both = 45 - 40 = 5.
Q.89Medium
All mammals are vertebrates. Some vertebrates are aquatic. No aquatic animals are terrestrial. Which of the following must be true?
Answer: D
Since some vertebrates are aquatic and no aquatic animals are terrestrial, some vertebrates (aquatic ones) are not terrestrial. Mammals are vertebrates, so some mammals may not be terrestrial.
Q.90Easy
A person walks 10 km north, then 5 km east, then 10 km south, then 5 km west. Where does he end up?
Answer: A
Walking 10 km N, then 10 km S cancels out vertically. Walking 5 km E, then 5 km W cancels out horizontally. The person returns to the starting point.
Q.91Easy
In a row of 8 people sitting left to right, P is 5th from the left. How many people are to the right of P?
Answer: B
If P is 5th from the left in a row of 8, then positions 6, 7, 8 are to the right. That's 3 people.
Q.92Easy
ELEPHANT : TRUNK :: KANGAROO : ?
Answer: A
As trunk is a distinctive feature/characteristic of elephant, pouch is a distinctive feature of kangaroo. The analogy is based on unique features.
Q.93Medium
Six friends A, B, C, D, E, F sit in a circle. A sits opposite to D. B is to the immediate right of A. Who is to the immediate left of D?
Answer: C
In a circle of 6: A opposite D means 3 positions apart. If B is right of A, and counting clockwise: A, B, ?, ?, ?, ?. D is opposite A. The person left of D (right side from D's perspective) is C.
Q.94Easy
Complete the series: Z, Y, X, W, V, U, __, __
Answer: A
The series is in reverse alphabetical order, decreasing by 1 each time. After U comes T, then S.
Q.95Medium
In a puzzle, if 5 boxes contain balls numbered 1-5, and box A has an odd number, box B has a prime number, box C has a number divisible by 2, then which boxes definitely contain specific numbers?
Answer: D
Odd numbers: 1, 3, 5 (A could have any). Prime numbers: 2, 3, 5 (B could have any). Divisible by 2: 2, 4 (C could have any). Multiple assignments possible.
Q.96Easy
If CATS is coded as 3-1-20-19, then DOGS is coded as?
Answer: A
Each letter is replaced by its position in the alphabet: C=3, A=1, T=20, S=19. Similarly: D=4, O=15, G=7, S=19. Answer: 4-15-7-19.
Q.97Hard
In a seating arrangement, 6 people sit around a hexagonal table. M is 2 seats away from N (clockwise). K is opposite to M. Who sits between K and N (clockwise)?
Answer: B
We know M, N (2 seats away clockwise), and K (opposite M). But without knowing other people's positions or exact starting point, the person between K and N cannot be uniquely determined.
Q.98Medium
Some novels are thrilling. All thrillers are entertaining. No entertaining works are boring. Based on this, which statement is definitely FALSE?
Answer: C
From the statements: Some novels are thrilling → Some thrillers are entertaining (since all thrillers are entertaining) → Not boring. So some novels are not boring. Statement C (All novels are boring) is definitely FALSE.
Q.99Medium
Find the odd one out: 121, 144, 169, 196, 225, 289
Answer: C
121=11², 144=12², 169=13², 196=14², 225=15². These are consecutive perfect squares. 289=17², which breaks the consecutive sequence. 289 is the odd one.
Q.100Easy
In a race, Arjun finishes before Bhavna, and Bhavna finishes before Chaya. Devi finishes before Arjun. Who finishes last?
