HCF and LCM Questions and Answers ( Practice Test 1 )

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Hello Aspirants, Under " HCF and LCM Questions and Answers ( Practice Test 1 ) " we will deal with 10 Multiple Choice Questions based on previous year questions asked in various competitive exams under HCF and LCM section.

This is the first practice paper for HCF and LCM.

Try to achieve 10 out of 10 by answering all questions correctly.

Best of Luck

Q 1. The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is :

A. 15 cm

B. 35 cm

C. 25 cm

D. None of these

Q 2. The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is :

A. 127

B. 305

C. 235

D. None of these

Q 3. The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is :

A. 30

B. 35

C. 40

D. Cannot Be Determined

Q 4. The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is :

A. 308

B. 300

C. 208

D. Cannot Be Determined

Q 5. What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?

A. 630

B. 1230

C. 530

D. None of these

Q 6. Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is :

A. 3

B. 4

C. 5

D. 6

Q 7. The G.C.D. of 1.08, 0.36 and 0.9 is :

A. 0.03

B. 0.09

C. 0.15

D. 0.18

Q 8. The least multiple of 7, which leaves a remainder of 4, when divided by 6, 9, 15 and 18 is :

A. 364

B. 464

C. 534

D. 674

Q 9. The smallest number which when decreased by 7, is divisible 12, 16, 18, 21 and 28 is :

A. 915

B. 925

C. 1015

D. 1025

Q 10. The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is :

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