HCF and LCM Practice Question and Answer

Q:

If the product of three consecutive numbers is 210 then sum of the smaller number is: 

925 0

  • 1
    5
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "11"

Q:

If (x + k ) is the common factor of x2 + ax + b and x2 + cx + d , then what is k equal to ?

921 0

  • 1
    Correct
    Wrong
  • 2
    Correct
    Wrong
  • 3
    Correct
    Wrong
  • 4
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. ""

Q:

The product of two numbers is 2028 and their HCF is 13. The number of such pair is-

920 0

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "2"

Q:

The ratio of two numbers is 2: 3 and their L.C.M is 48.  What is the number?

915 0

  • 1
    8, 6
    Correct
    Wrong
  • 2
    16, 24
    Correct
    Wrong
  • 3
    18, 32
    Correct
    Wrong
  • 4
    25, 28
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "16, 24"

Q:

Three numbers are in the ratio of 3:5:10 and their LCM is 630. Find their HCF.

911 0

  • 1
    21
    Correct
    Wrong
  • 2
    42
    Correct
    Wrong
  • 3
    63
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "21"

Q:

The least number which when divided by 4, 6, 8 and 9 leave zero remainders in each case and when divided by 13 leaves a remainder of 7 is: 

910 0

  • 1
    85
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    144
    Correct
    Wrong
  • 4
    72
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 4. "72 "

Q:

The product of two number is 4107. If the HCF of the number is 37. The greatest number is

909 0

  • 1
    185
    Correct
    Wrong
  • 2
    111
    Correct
    Wrong
  • 3
    107
    Correct
    Wrong
  • 4
    101
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "111 "

Q:

A number which when divided by 10 leaves remainder of 9, when divided by 9 leaves a remainder of 8, and when divided by 8 leaves a remainder of 7, is: 

907 0

  • 1
    359
    Correct
    Wrong
  • 2
    1359
    Correct
    Wrong
  • 3
    1539
    Correct
    Wrong
  • 4
    539
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "359 "

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully