RBI assistant prelims (14 feb) 2020 Questions and Answers Detailed Explanation

Answer: (a)

C is father of B.

E is brother of C.

G is uncle of E.

F is sister-in-law of G so G’s brother is married to F.

A is a female member and there are two couples in the family so A is married to C.

Now D is married to F and father of E and C.

B’s gender is unknown.

Answer: (d)

1) D has the joining before June, but not in the month which has more than 30 days.

2) Four people have the joining between J and D.

3) E has the joining after J.

4) Three people have the joining between E and A.

5) Two people have the joining between A and F.

6) Two people have the joining between B and C and both have the joining before E.

7) C has the joining after A.

8) G has the joining before H.

9) H does not have the joining in the month which has 31 days.

(Here, case 1 will be eliminated)

Therefore, option D is the correct answer.

Answer: (d)

1) D has the joining before June, but not in the month which has more than 30 days.

2) Four people have the joining between J and D.

3) E has the joining after J.

4) Three people have the joining between E and A.

5) Two people have the joining between A and F.

6) Two people have the joining between B and C and both have the joining before E.

7) C has the joining after A.

8) G has the joining before H.

9) H does not have the joining in the month which has 31 days.

(Here, case 1 will be eliminated)

Therefore, option D is the correct answer.

Answer: (e)

C is father of B.

E is brother of C.

G is uncle of E.

F is sister-in-law of G so G’s brother is married to F.

A is a female member and there are two couples in the family so A is married to C.

Now D is married to F and father of E and C.

B’s gender is unknown.

Answer: (c)

Option (c) is the correct answer as the shortest distance between D and F is 10m.

$DF = √{(DG)^2 + (FG)^2}$

$= √{6^2 + 8^2}$

= 10m

Answer: (c)

Option (c) is the correct answer as Shreya is north-east of her initial position.