H.C.F & L.C.M. of Numbers Questions and Answers

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Q1
The H.C.F. of 1095 and 1168 is :
  • A 37
  • B 73
  • C 43
  • D 83
Answer: Option B
Q2
The H.C.F. of 2923 and 3239 is :
  • A 37
  • B 47
  • C 73
  • D 79
Answer: Option D
Q3
The H.C.F. OF 3556 and 3444 is :
  • A 25
  • B 26
  • C 28
  • D 23
Answer: Option C
Q4
The H.C.F. of 210, 385 and 735 is :
  • A 7
  • B 14
  • C 21
  • D 35
Answer: Option D
Q5
Which of the following is a pair of co-primes ?
  • A (21, 35)
  • B (23, 92)
  • C (18, 25)
  • D 16, 62)
Answer: Option C
Q6
The L.C.M. of 26, 56, 104 and 182 is :
  • A 546
  • B 1274
  • C 728
  • D 784
Answer: Option C
Q7
The L.C.M.  of 148 nd 185 is
  • A 680
  • B 740
  • C 3700
  • D 2960
Answer: Option B
Q8
Two numbers are in the ratio of 15 : 11 If their H.C.F. is 13, then the numbers :
  • A 75, 55
  • B 105, 77
  • C 15, 11
  • D 195, 143
Answer: Option D
Q9
Three numbers are in the ratio 1 : 2 : 3 and their H.C.F. is 12. The numbers are :
  • A 12, 24, 36
  • B 10, 20, 30
  • C 5, 10, 15,
  • D 4, 8, 12
Answer: Option A
Q10
The sum of two numbers is 216 and their H.C.F. is 27. The numbers are :
  • A 27, 189
  • B 154, 162
  • C 108, 108
  • D 81, 189
Answer: Option A

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