Problems On H.C.F And L.C.M – Aptitude MCQ Questions – 03 Posted on July 10, 2020July 10, 2020 by admin Question 1The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is: A. 123 B. 127 C. 235 D. 305 Question 2If 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 reciprocals of the numbers is equal to: A. 55/601 B. 601/55 C. 11/120 D. 120/11 Question 3Three 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: A. 75 B. 81 C. 85 D. 89 Question 4The 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. 25 cm C. 35 cm D. 42 cm Question 5Which of the following has the most number of divisors? A. 99 B. 101 C. 176 D. 182 Question 6Find the highest common factor of 36 and 84 A. 4 B. 6 C. 12 D. 18 Question 7The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is: A. 504 B. 536 C. 544 D. 548 Question 8Which of the following fraction is the largest ? A. 7/8 B. 13/16 C. 31/40 D. 63/80 Question 9The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is: A. 28 B. 32 C. 40 D. 64 Question 10 The H.C.F. of 9/10, 12/25, 18/35 and 21/40 is: A. 3/5 B. 252/5 C. 3/1400 D. 63/700