HCF and LCM Questions with Answers for Competitive Exam

Today I am providing HCF and LCM  questions and answers for competitive exams. You can easily get 2-3 marks with the help of HCF and LCM Aptitude Questions for Competitive Exams. This post of HCF and LCM Questions for Competitive Exams is very important also related to Time and Distance Questions.

Here’s a blog of HCF and LCM Aptitude Questions for Competitive Exams.  As you know HCF and LCM questions and answers are very useful topic for Competitive Exams as like Ratio and Proportion.

HCF and LCM Aptitude Questions

1. What is the greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm?
A. 10 cm
B. 30 cm
C. 25 cm
D. 20 cm
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Ans .  D

 
2. N is the greatest number which divides 1305, 4665 and 6905 and gives the same remainder in each case. What is the sum of the digits in N?
A. 4
B. 3
C. 6
D. 5
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Ans .  A

 
3. A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and C in 198 seconds, all starting at the same point. After what time will they again at the starting point ?
A. 36 minutes 22 seconds
B. 46 minutes 22 seconds
C. 36 minutes 12 seconds
D. 46 minutes 12 seconds
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Ans .  D

 
4. What is the HCF of 2.04, 0.24 and 0.8 ?
A. 1
B. 2
C. 0.02
D. 0.04
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Ans .  D

 
5. Three numbers which are co-prime to each other are such that the product of the first two is 119 and that of the last two is 391. What is the sum of the three numbers?
A. 47
B. 43
C. 53
D. 51
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Ans .  A

 
6. The product of two numbers is 2028 and their HCF is 13. What are the number of such pairs?
A. 4
B. 3
C. 2
D. 1
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Ans .  C

 
7. A boy divided the numbers 7654, 8506 and 9997 by a certain largest number and he gets same remainder in each case. What is the common remainder?
A. 156
B. 199
C. 211
D. 231
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Ans .  B

 
8. What is the greatest number which on dividing 1223 and 2351 leaves remainders 90 and 85 respectively?
A. 1133
B. 127
C. 42
D. 1100
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Ans .  A

 
9. If HCF of two numbers is 11 and the product of these numbers is 363, what is the greater number?
A. 9
B. 22
C. 33
D. 11
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Ans .  C

 
10. What is the least multiple of 7 which leaves a remainder of 4 when divided by 6, 9, 15 and 18 ?
A. 364
B. 350
C. 343
D. 371
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Ans .  A