GK Maths/ Maths Quiz for Competitive Exams

GK Maths is about General Knowledge questions that you can expect for competitive exams like SSC CGL, LDC, LGS etc……

GK MATHS/ MATHS QUIZ FOR COMPETITIVE EXAMS
Expected Questions for SSC CGL/ LDC/ LGS etc….
Choose the correct answer from the options given below:

  1. Fill in the blanks: AZD, —-, CTD, DQD, END.
    A. BWD
    B. DWB
    C. BVD
  2. Cylinder: Circle :: Triangular pyramid : —————
    A. Sphere
    B. Triangle
    C. Square
  3. Find the least number which is exactly divisible by 8, 12, and 15.
    A. 60
    B. 100
    C. 120
  4. Complete the series: 1, 26, 126, 351, ———-
    A. 371
    B. 751
    C. 571
  5. The LCM and HCF of two numbers are 60 and 2 respectively. If one number is 20, find the other number?
    A. 20
    B. 6
    C. 120
  6. The sum of 5 consecutive numbers is 50, which is the smallest number?
    A. 8
    B. 9
    C. 10
  7. Find the sum of the squares of first 50 natural numbers?
    A. 1275
    B.42925
    C. 52492
  8. Which of the following is the smallest?
    A. 8.8
    B. 8.08
    C. 8.008
  9. Find the value of 105 x 95?
    A. 9975
    B. 9957
    C. 9905
  10. If 30% of a number is 50% of 300, find the number?
    A. 400
    B. 500
    C. 600

ANSWERS WITH EXPLANATION:

  1. BWD
  2. Triangle
  3. 120
    [Hint: Find the LCM of 8, 12 and 15]
  4. 751
  5. 6
    [Hint: LCM x HCF = Product of the numbers]
  6. 8
    [Hint: Let 5 consecutive numbers be x, x+1, x+2, x+3, x+4
    Given x + x+ 1+ x+ 2 + x + 3 + x + 4 = 50
    5x + 10 = 50
    5x = 40
    x = 40/5 = 8]
  7. 42925
    [Hint: Sum of the squares of first n natural numbers = n (n + 1) (2n + 1) /6]
  8. 8.008
  9. 9975
    [Hint: 105 x 95 = (100 + 5) (100 – 5)]
  10. 500
    [Hint: Let the number be x
    30% of x = 50% of 300]

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