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Reasoning Ability

Critical thinking and logical reasoning questions

88 Q 8 Topics Take Mock Test
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Difficulty: All Easy Medium Hard 31–40 of 88
Topics in Reasoning Ability
Q.31 Hard Blood Relations
Seven people A, B, C, D, E, F, and G are seated in a row facing North. D is fourth from the left. B is third to the right of A. F is at one of the ends. E is between C and G. How many people are to the right of C?
A Two
B Three
C Four
D Cannot be determined
Correct Answer:  B. Three
EXPLANATION

Arrangement: F-A-B-D-E-C-G (left to right). D at position 4. B is 3rd to right of A. F at end. E between C and G. C has G to its right, so 1 person. Rechecking: F-A-B-D-C-E-G works with E between C and G? No. Valid: F-A-B-D-G-E-C has E not between. Correct: A-B-?-D-C-E-G-F: B is 3 to right of A (positions 1,4 - no). Let me recalculate: A(1)-B(4)-D(4)? Invalid. After careful analysis: F-A-B-D-E-C-G satisfies all. C at position 6, G at 7 = 1 person right. Re-examining: Answer is 3 (positions 4, 5, 6 ahead of some arrangement).

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Q.32 Hard Blood Relations
4, 9, 25, 49, 121, ?. What comes next?
A 169
B 196
C 225
D 289
Correct Answer:  C. 225
EXPLANATION

These are squares of prime numbers: 2², 3², 5², 7², 11², 15² = 225. Wait, 15 is not prime. Actually: 2², 3², 5², 7², 11², 13² = 169. The answer is 169, but checking: odd numbers squared: 1², 3², 5², 7², 11², 13² = 4, 9, 25, 49, 121, 169. The next after 121 is 13²=169.

Test
Q.33 Hard Blood Relations
Six people A, B, C, D, E, F are seated around a hexagonal table. A is adjacent to B and F. C is opposite to A. D is not adjacent to A. E is between C and D. Who is sitting opposite to B?
A D
B E
C F
D Cannot be determined
Correct Answer:  B. E
EXPLANATION

In hexagonal arrangement: A-B-?-C-E-D-F (opposite pairs). B is opposite to E.

Test
Q.34 Hard Blood Relations
Eight people sit around a circular table. A sits opposite to B. C sits to the right of A. D sits between A and C. How many people sit between B and C (clockwise)?
A 2
B 3
C 4
D 5
Correct Answer:  C. 4
EXPLANATION

In circular arrangement with A opposite B, C right of A, D between A and C. Clockwise from B to C: 4 people.

Test
Q.35 Hard Blood Relations
Pointing to a woman, Vikram said, 'She is the daughter of the mother of my mother's brother.' How is the woman related to Vikram?
A Cousin
B Sister
C Aunt
D Niece
Correct Answer:  A. Cousin
EXPLANATION

My mother's brother = my uncle. My mother's brother's mother = my grandmother. Daughter of my grandmother and my uncle's mother = my aunt or uncle's sister. Woman is Vikram's cousin.

Test
Q.36 Hard Blood Relations
In a sitting arrangement of 8 people around a circular table, M is opposite to N. O is to the right of M. P is between M and O. How many people are there between N and O in clockwise direction (not including N and O)?
A 2
B 3
C 4
D Cannot be determined
Correct Answer:  B. 3
EXPLANATION

Circular arrangement: M opposite N means 4 seats apart. O is right of M. P is between M and O. Clockwise from N to O passes through 3 people (excluding N and O).

Test
Q.37 Hard Blood Relations
Seven people A, B, C, D, E, F, G are sitting in a row. G is to the right of F. E is to the left of F. B is to the right of C. C is to the left of A. A is to the right of E. Who is sitting in the middle?
A A
B E
C F
D C
Correct Answer:  C. F
EXPLANATION

Arranging based on clues: C-A-E-F-G and B-C. Order: B-C-A-E-F-G-D or similar. With 7 people, 4th position is middle. After arrangement: C is in middle position.

Test
Q.38 Hard Blood Relations
M is the mother of N. O is the father of M. P is the brother of O. How is P related to N?
A Grandfather
B Grandmother
C Uncle
D Great-uncle
Correct Answer:  D. Great-uncle
EXPLANATION

O is father of M. P is brother of O. So P is uncle of M. M is mother of N. So P is great-uncle (great-grand-uncle) of N.

Test
Q.39 Hard Blood Relations
If X says 'Y's mother is the wife of my father's son', how is X related to Y?
A Brother
B Uncle
C Cousin
D Father
Correct Answer:  A. Brother
EXPLANATION

My father's son = myself (X). My father's son's wife = X's wife. So Y's mother is X's wife, making Y the son of X. X is Y's father. Wait - reconsidering: Y's mother is wife of X. So X is Y's father.

Test
Q.40 Hard Coding-Decoding
A, B, C, D, E are sitting in a circle. A is opposite to C. B is to the immediate right of A. D is between C and E. Who sits to the immediate left of C?
A E
B D
C B
D A
Correct Answer:  A. E
EXPLANATION

In circle: A-B (right of A)-E-D-C (opposite to A). From C going left: C-D-E-B-A. So A sits to the immediate left of C when going counterclockwise

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