# Maths GK/ General Knowledge Questions for Competitive Exams- Part 2

**MATHS GK/ General Knowledge Questions for Competitive Exams – Part 2**

1. Find the value of 5 + 12 – 3 x 3 – 2.

A. 37

B. 6

C. 14

2. The sum of the angles of a polygon with 22 sides is —————-

A. 360 degree

B. 3600 degree

C. 1800 degree

3. The angle measurement between the hour and minute hand of a clock if the clock time is 9.30 ———————-

A. 90

B. 100

C. 105

4. The value of 3 + 3 x 3 – 3 – 4 is————–

A. 11

B. 5

C. 0

5. Find the sum of 32.05 + 1.08 + 3.5 + 9.842

A. 46.472

B. 13.180

C. 47.642

6. The average of the following numbers is 36. Find the value of x.

The numbers are 10, 20, 30, 40, x.

A. 50

B. 65

C. 80

7. The place value of 3 in 274.3 is —————

A. 10

B. 1/10

C. 100

8. Find the odd one out:

A. Triangle

B. Rectangle

C. Cylinder

9. What number comes next?

2, 3, 5, 7, 11, —————-

A. 13

B. 15

C. 17

10. If the fourth term of an AP is 31 and sixth term is 47, then the first term is —————

A. 7

B. 9

C. 11

11. The length and breadth of a rectangular garden are 110 m and 75m respectively. The perimeter of the garden is ———-

A. 185

B. 370

C. 8250

12. Find the odd one out:

A. 81

B. 64

C. 125

13. What number comes next?

3, 12, 30, 66………..

A. 96

B. 138

C. 124

14. Find the odd one out:

A. Cuboid

B. Cylinder

C. Square

15. If 2+3 = 7, 3+4 = 13, 4+5 = 21, then 7 + 8 = ——————

A. 57

B. 34

C. 41

**ANSWERS:**

1. 6 (Use BODMAS)

2. 3600 degree

Sum of angles with n sides = (n-2)180 = (22 -2) 180 = 20 x 180 = 3600

3. 105

(H –M) 30 + Minute /2

(9-6) 30 + 30/2 = 90 + 15 = 105

4. 5 (Use BODMAS)

5. 46.472

6. 80

(10 + 20+ 30 + 40 + x) /5 = 36

100 + x = 36 x 5

100 + x = 180

x = 180 – 100 = 80

7.1/10

8. Cylinder (All others are two dimensional)

9. 13 (All are prime numbers)

10. 7

(6th term – 4 th term = 47 – 31 = 16

d = 16/ 2 = 8

a + (n-1) d = a + (4-1) 8 = 31 (Since 4th term is 31)

a + 24 = 31

a = 31-24 = 7)

11. 370 m

(Perimeter = 2 (l + b) = 2(110 + 75) = 2 x 185 = 370)

12. 125 (It’s a cube of 5, other numbers are squares)

13. 138

(3+9 = 12

12 + 18 = 30

30 + 36 = 66

66 + 72 = 138)

14. Square (Others are three dimensional)

15.57

(2×3 +1 = 7

3×4 + 1 = 13

4 x 5 + 1 = 21

7 x 8+ 1 = 57)