Problems on LCM & HCF Mcqs

Q.  The least number which when add 3 to it, completely divided 8, 12 and 18 is_______?

a. 71
b. 70
c. 69
d. 68


ANSWER: See Answer
 
LCM = 72
72 – 3 = 69
MCQs:  The smallest fraction, which each of 6/7, 5/14, 10/21 will divide exactly is_________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?
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MCQs:  Which of the following fractions is the largest?
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MCQs:  The H.C.F of two numbers is 23 and the other two factors of their L.C.M are 13 and 14. The larger of the two numbers is___________?
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MCQs:  The H.C.F of two numbers is 8. Which of the following can never be their L.C.M?
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MCQs:  Product of two co-prime numbers is 117. Their L.C.M should be__________?
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MCQs:  If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocal of the numbers is equal to___________?
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MCQs:  The L.C.M of two numbers is 495 and their H.C.F is 5. If the sum of the numbers is 10, then their difference is__________?
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MCQs:  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__________?
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MCQs:  The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is____________?
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MCQs:  Three numbers are in the ratio 3:4:5 and their L.C.M is 2400. Their H.C.F is:
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MCQs:  The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. The sum of numbers is__________?
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MCQs:  Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is________?
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MCQs:  The product of two numbers is 2028 and their H.C.F is 13. The number of such pairs is__________?
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MCQs:  The product of two numbers is 4107. If the H.C.F of these numbers is 37, then the greater number is_________?
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MCQs:  The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above conditions is__________?
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MCQs:  The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is__________?
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MCQs:  Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are__________?
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MCQs:  The G.C.D of 1.08, 0.36 and 0.9 is________?
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MCQs:  Find the lowest common multiple of 24, 36 and 40.
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