# LCM and HCF

HCF and LCM: What is LCM? What is HCF? LCM full form, HCF full form, How to find LCM of two numbers, LCM of Fractions, HCF of Fractions, HCF and LCM problems

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## Online Aptitude Questions with Answers on LCM and HCF

Q21. The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:

1.  15 cm
2.  25 cm
3.  35 cm
4.  42 cm

Solution : 35 cm
Q22. 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:

1.  75
2.  81
3.  85
4.  89

Solution : 85
Q23. Find the highest common factor of 36 and 84.

1.  4
2.  6
3.  12
4.  18

Solution : 12
Q24. Which of the following fraction is the largest ?

1.  7/8
2.  13/16
3.  31/40
4.  63/80

Solution : 7/8

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Q25. The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:

1.  504
2.  536
3.  544
4.  548

Solution : 548
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