Number Puzzles Questions and Answers

Ads

Number Puzzles Questions and Answers

Introduction

Number puzzles are a fun and engaging way to exercise your brain and improve your problem-solving skills. They often involve mathematical concepts such as addition, subtraction, multiplication, and division, and require a combination of logic and creativity to solve. Are you seeking for a job? Install Nithra Jobs to get a job offers in Tamil Nadu. Number puzzles can be enjoyed by people of all ages and skill levels, and are a great way to keep your mind sharp.

1. Which number replaces the question mark?

A.8
B.7
C.9
D.13
Ans: 7
Explanation:
Using the upper two circles as a source, the values in corresponding segments of the lower circle equal the multiplication of the numbers in the upper two circles.
Ex: 4 × 2 = 8, 5 × 3 = 15, 7 × 3 = 21, 6 × 7 = 42

2. Which number replaces the question mark?

A.3
B.4
C.6
D.5
Ans: 4
Explanation:
Adding the bottom 3 numbers and getting the value of top box.
Ex: (i) 14 + 5 + 8 = 27
(ii) 7 + 6 + 3 = 16
(iii) 8 + 4 + 20 = 32

3. Which number replaces the question mark?

A.6
B.16
C.8
D.2
Ans: 6
Explanation:
Looking at the diagram in rows, the central circle equals half the sum of the numbers in the other circles to the left and right of the center.
Ex: (i) 4 + 2 = 6 / 2 = 3
(ii) 5 + 3 + 1 + 1 = 10 / 2 = 5
(iii) 6 + 1 + 2 + 3 + 3 + 1 = 16 / 2 = 8
(iv) 7 + 2 + 4 + 3 = 16 / 2 = 8
(v) 9 + 3 = 12 / 2 = 6

4. Which number replaces the question mark?

A.10
B.21
C.19
D.13
Ans: 10
Explanation:
In each star diagram, the number in the center equals the sum of the top three numbers, subtracting the sum of the bottom two number.
Ex: (i) 4 + 2 + 7 = 13, 3 + 1 = 4 ⇒ 13 - 4 = 9
(ii) 3 + 3 + 5 = 11, 4 + 2 = 6 ⇒ 11 - 6 = 5
(iii) 6 + 9 + 2 = 17, 4 + 3 = 7 ⇒ 17 - 7 = 10

5. What number comes inside the missing box?

A.9
B.7
C.4
D.1
Ans: 9
Explanation:
Add together the four outer numbers in each diagram. Divided this answer by two to get the middle number.
Ex: (i) 4 + 3 + 2 + 1 = 10 ⇒ 10/2 = 5
(ii) 8 + 4 + 2 + 2 = 16 ⇒ 16/2 = 8
(iii) 1 + 8 + 3 + 6 = 18 ⇒ 18/2 = 9

6. What number comes inside the missing box?

A.8
B.2
C.6
D.9
Ans: 9
Explanation:
In each star the sum of outer three numbers is divided by 3.
Ex: (i) 3 + 4 + 5 = 12 ⇒ 12/3 = 4
(ii) 7 + 8 + 6 = 21 ⇒ 21/3 = 7
(iii) 9 + 7 + 11 = 27 ⇒ 27/3 = 9

7. What number comes inside the missing box?

A.2
B.0
C.1
D.5
Ans: 2
Explanation:
In each diagram, the central value equals the sum of the left- and right-hand digits, minus the sum of the upper and lower digits.
Ex: (i) 12 + 11 = 23, 3 + 2 = 5 ⇒ 23 - 5 = 18
(ii) 11 + 7 = 18, 4 + 9 = 13 ⇒ 18 - 13 = 5
(iii) 5 + 4 = 9, 2 + 1 = 3 ⇒ 9 - 3 = 6
(iv) 9 + 13 = 22, 4 + 2 = 6 ⇒ 22 - 6 = 16

8. What number comes inside the missing box?

A.5
B.1
C.4
D.8
Ans: 5
Explanation:
In each star, the value at the center equals the difference between the sum of the top 3 numbers and the sum of the bottom 3 numbers.
Ex: (i) 2 + 1 + 3 = 6, 5 + 6 + 6 = 17 ⇒ 17 - 6 = 11
(ii) 7 + 3 + 2 = 12, 11 + 4 + 8 = 23 ⇒ 23 - 12 = 11
(iii) 6 + 4 + 5 = 15, 2 + 9 + 9 = 20 ⇒ 20 - 15 = 5

9. What number comes inside the missing box?

A.6
B.14
C.2
D.18
Ans: 2
Explanation:
By multiplying each value in the corner position of a triangle, the answer at the center of triangle can be found.
Ex: (i) 5 × 4 × 2 = 40
(ii) 7 × 6 × 1 = 42
(iii) 3 × 2 × 8 = 48

10. What number comes inside the missing box?

A.5
B.13
C.16
D.19
Ans: 5
Explanation:
Start the top of each triangle and move clockwise around points. Add the first two number together and subtract 2 to give the next value round.
Ex: (i) 2 + 5 = 7 - 2 = 5, 5 + 5 = 10 - 2 = 8, 5 + 8 = 13 - 2 = 11
(ii) 3 + 4 = 7 - 2 = 5, 4 + 5 = 9 - 2 = 7, 5 + 7 = 12 - 2 = 10

Conclusion

Number puzzles are for anyone preparing for competitive exams that require mathematical and logical reasoning skills. Many competitive exams, such as aptitude tests, bank exams, and civil service exams, include questions that require you to solve number puzzles. By practicing these number puzzles questions and answers regularly, you can improve your problem-solving skills and increase your chances of success in these exams. Many different types of number puzzles available in Nithra Jobs. Recent job vacancies are update through notifications if you download our app.