Mental Ability, Analytical and Logical Reasoning (UPSC) Part-IV

Total Questions: 50

1. There are seven persons up on a ladder, A, B, C, D, E, F and G (not in that order). A is further up than E but is lower than C. B is in the middle. G is between A and B. E is between B and F. If F is between E and D, the person on the bottom step of the ladder will be [2014-II]

Correct Answer: (c) D
Solution:

D is at the bottom step of the ladder.

2. Consider that: [2014-II]

1. A is taller than B.

2. C is taller than A.

3. D is taller than C.

4. E is the tallest of all.

If they are made to sit in the above order of their height, who will occupy the mid position?

Correct Answer: (c) C
Solution:Sequence according to height.
E>D>C>A>B
Mid Position
Therefore, 'C' occupy the mid position.

3. Consider the following statements: [2014-II]

There are six villages A, B, C, D, E and F.

F is 1 km to the west of D.

B is 1 km to the east of E.

A is 2 km to the north of E.

C is 1 km to the east of A.

D is 1 km to the south of A.

Which three villages are in a line?

Correct Answer: (b) A, D, E
Solution:

Hence, A, D, E in a line.

4. Four children are sitting in a row. A is occupying the seat next to B but not next to C. If C is not sitting next to D, who is/are. occupying seat/seats adjacent to D? [2014-II]

Correct Answer: (b) A
Solution:

Hence, A occupy seats adjacent to D.

5. Assume that [2014-II]

1. the hour and minute hands of a clock move without jerking.

2. the clock shows a time between 8 o'clock and 9 o'clock.

3. the two hands of the clock are one above the other.

After how many minutes (nearest integer) will the two hands be again lying one above the other ?

Correct Answer: (c) 65
Solution:Two hands of clock are on one above between 8 to 9.

12 to 8 ⇒ 40 minutes

40 minutes ⇒ 60/55 × 40 = 480/11 min 8.

two hands of clock are on one above between 9 to 10.

12 to 9 ⇒ 45 min
45 min  ⇒ 60/55  x 45 =  540/11 min past 9.
So two hands be lying one above the other
= 60 480/11 +  540/11 = 660+540 - 480/11 =  720 /11  = 65.4

6. Examine the following figure: [2014-II]

Which one of the following figures has the above figure embedded in it?

 

Correct Answer: (c)
Solution:

7. Consider the following matrix : [2014-II]

Which one of the following figures fits into the blank part of the above matrix ?

(a)

(b)

(c)

(d)

 

Correct Answer: (b)
Solution:

8. Consider the table given below in which the numbers bear certain relationship among themselves along the rows : [2014-II]

Which one of the following numbers is the missing number indicated above by X?

Correct Answer: (e) b & d
Solution:Sum of numbers in 1st Row, 29 + 13 +18 ⇒ 60

Sum of numbers in 3rd Row, 30 + 27 +3 ⇒ 60

So, 2nd Row, 33 + X + 19 = 60

X + 52 = 60

X = 60 - 52

X = 8 or,

(2913)+2 18

(33 - X) + 1 = 19

(30-27)+0=3

∴X = 15

9. Consider the following matrix with one empty block in the lower extreme corner : [2014-II]

Which of the following figures could fit in the empty block and thus complete the matrix ?

(a)

(b)

(c)

(d)

 

Correct Answer: (a)
Solution:Remove one circle, a triangle is added,
So,

after removing circle, triangle is also added.
So,

10. With reference to the figure given below, the number of different routes from S to T without retracing from U and/or V, is [2014-II]

Correct Answer: (b) 18
Solution:

Total routes = 3  +3 + 3 + 3 + 3 + 3 = 18