HCF and LCM Aptitude Questions Practice Question and Answer
8 Q: The least multiple of 13, which on dividing by 4, 5, 6, 7 and 8 leaves remainder 2 in each case is
1237 05ef4066bbea49d16b47d19f0
5ef4066bbea49d16b47d19f0- 12522true
- 2840false
- 32520false
- 4842false
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Answer : 1. "2522 "
Q: Find the LCM of the fractions $${2\over 5}$$, $${3\over 7}$$ and $${4\over 9}$$
1236 06428208aed76c064b85e9ac4
6428208aed76c064b85e9ac4- 112true
- 224false
- 336false
- 435false
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Answer : 1. "12 "
Q: Three Alarm make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is
1226 05f40d8e8b8958f14fa2af581
5f40d8e8b8958f14fa2af581- 110:07:36 hrsfalse
- 210:07:24 hrsfalse
- 310:07:12 hrstrue
- 410:07:48 hrsfalse
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Answer : 3. "10:07:12 hrs"
Q: The LCM of two positive integers is twice the larger number and the HCF of the two numbers is 3. The smaller number is:
1195 0642d2f727ac9a186e4ea4a13
642d2f727ac9a186e4ea4a13- 16true
- 210false
- 39false
- 48false
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Answer : 1. "6 "
Q: If the product of three consecutive numbers is 210 then sum of the smaller number is:
1194 05f0823018e448621429eabd3
5f0823018e448621429eabd3- 15false
- 211true
- 33false
- 44false
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Answer : 2. "11"
Q: A number which when divided by 10 leaves remainder of 9, when divided by 9 leaves a remainder of 8, and when divided by 8 leaves a remainder of 7, is:
1186 05f07fbfebc929f40b0b9cb7c
5f07fbfebc929f40b0b9cb7c- 1359true
- 21359false
- 31539false
- 4539false
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Answer : 1. "359 "
Q: a and b are two whole numbers and c is their HCF, then the LCM of those two numbers is
1179 061bac36539095b5c3063b0e1
61bac36539095b5c3063b0e1- 1ab/ctrue
- 2abcfalse
- 3bcfalse
- 4ac/bfalse
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Answer : 1. "ab/c"
Q: What is the Highest Factor of $$ {2^{3}×{3^{5}}} and \ {2^{3}×{3^{5}}}$$ ?
1173 0610c651e997056628331c295
610c651e997056628331c295- 1$$ {2^{3}×{3^{5}×{5^{2}}}}$$false
- 2$$ {3^{3}} $$true
- 3$$ {2^{1}×{3^{3}×{5^{1}}}}$$false
- 4$$ {{3^{5}×{5^{2}}}}$$false
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