Test your logical skills with numbers in this challenging puzzles

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Introduction

Numerical reasoning is the ability to understand, interpret and manipulate numerical data. It is a skill that is required for many jobs, especially those that involve working with numbers, such as accounting, finance, engineering, science and technology. Numerical reasoning tests are often used by employers to assess candidates numerical aptitude and problem-solving skills. Use Nithra Jobs to get your desired career.

1. What number should replace the question mark?

A.6
B.14
C.10
D.12
Ans: 6
Explanation:
Split the diagram into 2 halves vertically, each 3 columns wide. Numbers in the left-hand half follow the sequence of cubed numbers, from 64 to 729, and numbers in the right-hand half follow the sequence of squared numbers, from 121 to 256.
Ex: (i)Left hand: 4 * 4 * 4 = 64
5 * 5 * 5 = 125
6 * 6 * 6 = 216
7 * 7 * 7 = 343
8 * 8 * 8 = 512
9 * 9 * 9 = 729
(ii) 11 * 11 = 121
12 * 12 = 144
13 * 13 = 169
14 * 14 = 196
15 * 15 = 225
16 * 16 = 256

2. Which number replaces the question mark?

A.7
B.5
C.8
D.3
Ans: 3
Explanation:
Using the lower two circles as a source, the values in corresponding segments of the upper left circle equal the sums of the numbers in the lower two circles. The values in the upper central circle equal the products of the values in the lower two circles, and the upper right circle equals the difference between values in the lower two circles.
Ex: (i) Left side: 2 + = 8, 4 + 3 = 7, 9 + 1 = 10, 7 + 3 = 10
(ii) Center: 6 * 2 = 12, 4 * 3 = 12, 9 * 1 = 9, 7 * 3 = 21
(iii) 6 - 2 = 4, 4 - 3 = 1, 9 - 1 = 8, 7 - 3 = 4

3. Which number replaces the question mark?

A.6
B.8
C.11
D.9
Ans: 6
Explanation:
Starting on the extreme left and right hand of the row and working towards the center, add the end digits together and subtract 3 to give the next value along to the left, and add 1 to give the next value along to the right. Repeat this sequence, working towards the center.
Ex: (i) 4 + 6 = 10, 10 - 3 = 7, 10 + 1 = 11
(ii) 7 + 11 = 18, 18 - 3 = 15, 18 + 1 = 19
(iii) 15 + 19 = 34, 34 - 3= 31, 34 + 1= 35

4. Which number replaces the question mark?

A.97
B.95
C.90
D.82
Ans: 82
Explanation:
Start at the top and work down. Add the separate digits of the top number to the number itself to give the next one down, then subtract 12 to give the one after this. Continue with this alternating pattern.
Ex: (i) 71 seperate 7 + 1 = 8, 71 + 8 = 79 ⇒ 79 - 12 = 67
67 seperate 6 + 7 = 13, 67 + 13 = 80 ⇒ 80 - 12 = 68 (iii) 68 seperate 6 + 8 = 14, 68 + 14 = 82

5. Which number replaces the question mark?

A.1
B.5
C.7
D.3
Ans: 1
Explanation:
In each row of the diagram, the values in the central circle equal the sums of the digits in corresponding segments of the left- and right-hand circles.
Ex: (i) 6 + 5 = 11, 2 + 1 = 3
(ii) 4 + 2 = 6, 1 + 6 = 7
(iii) 9 + 2 = 11, 3 + 4 = 7
(iv) 9 + 3 = 12, 1 + 13 = 14
(v) 9 + 5 = 14, 4 + 2 = 6
(vi) 4 + 2 = 6, 2 + 1 = 3

6. Can you find the missing number?

A.21
B.19
C.17
D.16
Ans: 17
Explanation:
In each star, the number in the center equals the difference between the sum of the even numbers and the sum of the odd numbers around the points of the star.
Ex: (i) 2 + 4 + 8 = 14, 1 + 3 = 4 ⇒ 14 - 4 = 10
(ii) 8 + 4 + 6 = 18, 5 + 3 = 8 ⇒ 18 - 8 = 10
(iii) 2 + 4 = 6, 9 + 3 + 11 = 23 ⇒ 23 - 6 = 17

7. Can you find the missing number?

A.10
B.21
C.28
D.27
Ans: 10
Explanation:
In each circle, the number in the lower segment equals the difference between the upper two numbers and the answer with product 2 and get the final answer.
Ex: (i) 4 - 3 = 1, 1 * 2 = 2
(ii) 8 - 5 = 3, 3 * 2 =6
(iii) 12 - 6 = 6, 6 * 2= 12
(iv) 7 - 2 = 5, 5 * 2 = 10

8. Can you find the missing number?

A.7
B.4
C.1
D.2
Ans: 2
Explanation:
In each circle, the number in the lower segment equals the sum of lower two numbers and divided by 2. to give the result.
Ex: (i) 8 + 4 = 12, 12/2 = 6
(ii) 20 + 2 = 22, 22/2 = 11
(iii) 16 + 2 = 18, 18/2= 9

9. Can you find the missing number?

A.129
B.125
C.127
D.130
Ans: 125
Explanation:
The trick that has been used here is that all the corner digits have been reversed add then added the sum is than placed in the center.
Ex: (i) 13 + 32 + 11 + 34 = 90
(ii) 21 + 19 + 27 + 16 = 83
(iii) 33 + 44 + 22 + 26 = 125

10. What number should replace the question mark?

A.31
B.24
C.23
D.22
Ans: 22
Explanation:
It is sequence of prime numbers and adding 5 to the number. Ex: 2, 3, 5, 7, 11, 13, 17 first seven prime numbers are adding 5 to each number.
7, 8, 10, 12, 16, 18, 22.

Conclusion

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