# 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

Q11. Find the lowest common multiple of 24, 36 and 40.

1.  120
2.  240
3.  360
4.  480

Solution : 360
Q12. The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is:

1.  3
2.  13
3.  23
4.  33

Solution : 23
Q13. Reduce 128352/238368 to its lowest terms.

1.  3/4
2.  5/13
3.  7/13
4.  9/13

Solution : 7/13
Q14. The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is:

1.  1677
2.  1683
3.  2523
4.  3363

Solution : 1683

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Q15. 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 ?

1.  26 minutes and 18 seconds
2.  42 minutes and 36 seconds
3.  45 minutes
4.  46 minutes and 12 seconds

Solution : 46 minutes and 12 seconds
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