Reasoning Quiz

Q1)-Choose the correct alternative for that will follow the same pattern
20 , 19 , 17 , ? , 5

12

13

14

15

Ans.- C
The Pattern is - 1, - 2,...
Missing number = 17 - 3 = 14.

Q2)-2, 44 ,4 ,41, 6 ,38, 8,?

10, 12

35 ,32

35 ,10

10 , 52

Ans.- C
Here, there are two alternating patterns, one addition and one subtraction. The first starts with 2 and increases by 2; the second starts with 44 and decreases by 3.

Q3)-2, 3, 5, 7, 11, ?, 17

12

13

14

15

Ans.- B
Clearly, the given series consists of prime numbers starting from 2. The prime number after 11 is 13.
So, 13 is the missing number.

Q4)-17 ,14 ,14 ,11 ,11 ,8 ,8, ?

8 , 5

5 , 2

2 , 5

5 , 5

Ans.- D
In this simple subtraction with repetition series, each number is repeated, then 3 is subtracted to give the next number, which is then repeated, and so on.

Q5)-1, 6, 26,?, 426.

86

76

106

96

Ans.- C
Here the difference between the consecutive terms is multiplied by 4.
The difference of the two consecutive numbers is 5, 20, .....
5 × 4 = 20
20 × 4 = 80
26 + 80 = 106.

Q6)-2, 10, 40, 120,?

240

360

470

210

Ans.- A
Here the series is a multiplication series.
The order of the multiplication is ×5, ×4, ×3, ×2
120 × 2 = 240

Q7)-1000, 200, 40, ?

10

8

9

12

Ans.- B
This is a simple division series.
Each number is divided by 5.
Rule = (1st number / 5 = 2nd number) (2nd number / 5 = 3rd number)....
Now, (1000 / 5 = 200), (200 / 5 = 40), (40 / 5 = 8)...
So answer is a = 8.

Q8)-2, 10, 26, 50, ?, 122.

82

90

80

62

Ans.- A

Q9)-14, 28, 20, 40, 32, 64, ?

52

56

86

98

Ans.- B
This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8.
Rule = (1st no.) (1st x 2 = 2nd no.) (2nd - 8 = 3rd no.) (3rd x 2 = 4th no.)....
Now (14) (14 x 2 = 28) (28 - 8 = 20) (20 x 2 = 40) (40 - 8 = 32) (32 x 2 = 64) (64 - 8 = 56)...
So the answer is b = 56.

Q10)-3, 4, 7, 8, 11, 12,?

7

10

15

20

Ans.- C
This alternating addition series begins with 3;
then 1 is added to give 4;
then 3 is added to give 7;
then 1 is added, and so on.
Rule = (first number + 1) (second number + 3) (third number + 1) (fourth number + 3)...
Now The series is 3, 4, 7, 8, 11, 12...
(3 + 1 = 4), (4 + 3 = 7), (7 + 1 = 8), (8 + 3 = 11), (11 + 1 = 12) (12 + 3 = 15)...
So the answer is d = 15.