HCF and LCM Aptitude Questions Practice Question and Answer
8 Q: Two numbers are in the ratio 3: 4 if their LCM is 240 then smaller number will be
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60363d7be62cee4356730393- 1100false
- 280false
- 360true
- 450false
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Answer : 3. "60"
Q: Two numbers are in the ratio 3 : 5 and their HCF is 20. Their LCM is
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606c41e9affa2d5265b50eeb- 160false
- 2300true
- 330false
- 410false
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Answer : 2. "300"
Q: Two numbers are in the ratio 3 : 4. Their L.C.M. is 84. The greater number is
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5f08172970ee59767c9e1ac1- 128true
- 284false
- 321false
- 424false
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Answer : 1. "28"
Q: Four bells ring at the intervals of 5, 6, 8, and 9 seconds. All the bells ring simultaneously at the same time. They will again ring simultaneously after:
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5ef151e22c39485d739de41b- 112 minutesfalse
- 218 minutesfalse
- 36 minutestrue
- 424 minutesfalse
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Answer : 3. "6 minutes "
Q: The LCM of three different numbers is 120. Which of the following cannot be their HCF?
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5f0817ba8e448621429e4c03- 124false
- 235true
- 38false
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Answer : 2. "35 "
Q: Two pipes of length 36 metre and 40 metre are to be cut into equal pieces without leaving any extra length of pipe. Find the number of such pieces if pipes are to be cut of maximum length.
999 05ef1876a8022cc4acbbe8a05
5ef1876a8022cc4acbbe8a05- 19false
- 219true
- 34false
- 415false
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Answer : 2. "19"
Q: Three men step off together from the same spot. Their steps measure 63 cm, 70 cm and 77 cm respectively. The minimum distance each should cover so that all can cover the distance in complete steps is
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5dcba89da09a1624d197d480- 19630 cmfalse
- 29360 cmfalse
- 36930 cmtrue
- 46950 cmfalse
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Answer : 3. "6930 cm "
Q: If the least common multiple(LCM) of two numbers is 231, the Highest common multiple(H.C.F) of both numbers is 11 and the first number is 77, then the second number is
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5f1aa60f64a4af418928cb9c- 147false
- 237false
- 357false
- 433true
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