HCF and LCM Aptitude Questions Practice Question and Answer
8 Q: What is the greatest common factor of 2³ × 7² and 2⁵ × 3¹?
627 06310a0657c72c0778468e2c2
6310a0657c72c0778468e2c2- 12³ 3¹false
- 22³ 7² 3¹false
- 32³true
- 43¹ 7²false
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Answer : 3. "2³"
Q: Find the LCM and HCF of 27 and 81.
460 0630df59c5dea296d12575e78
630df59c5dea296d12575e78- 181; 27true
- 281; 81false
- 327; 81false
- 427; 27false
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Answer : 1. "81; 27"
Q: The LCM of two numbers is 48. If those numbers are in the ratio 2 : 3 then what will be their sum?
498 0630deb024e3bf85cbe74880c
630deb024e3bf85cbe74880c- 128false
- 232false
- 340true
- 464false
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Answer : 3. "40"
Q: There are some boys and girls in a room. The square of the number of girls is 28 less than the square of the number of boys. If two more girls join then the number of boys and girls becomes equal, then what is the total number of boys and girls in the room?
634 0630de9dd4e3bf85cbe748723
630de9dd4e3bf85cbe748723- 156false
- 214true
- 310false
- 47false
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Answer : 2. "14"
Q: The HCF of two numbers is 24. If sum of the numbers is 480, how many such pairs of numbers are possible?
517 062f11c3f09a97851b6264959
62f11c3f09a97851b6264959- 12false
- 25false
- 34true
- 43false
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Answer : 3. "4 "
Q: The HCF of two numbers 12906 and 14818 is 478. Their LCM is
436 062f11b7255c5be5841017f57
62f11b7255c5be5841017f57- 1400086true
- 2200043false
- 3600129false
- 4800172false
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Answer : 1. "400086 "
Q: The LCM of two numbers is 1920 and their HCF is 16. If one of the numbers is 128, find the other number.
448 062f11b2d06679c6dabc712d4
62f11b2d06679c6dabc712d4- 1204false
- 2240true
- 3260false
- 4320false
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Answer : 2. "240 "
Q: The L.C.M. of two numbers is 1820 and their H.C.F. is 26. If one number is 130 then the other number is:
474 062f11ac906679c6dabc703f9
62f11ac906679c6dabc703f9- 170false
- 21690false
- 3364true
- 41264false
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