Problems on LCM & HCF Mcqs

Q.  Three men start together to travel the same way around a circular track of 11 kilometers in circumference. Their speeds are 4, 5 and 8 kilometers per hour respectively. When will they meet at a starting point?

a. 11 hours
b. 12 hours
c. 220 hours
d. 22 hours


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  In finding the HCF of two numbers, the last divisor was 41 and the successive quotients, starting from the first, where 2, 4 and 2. The numbers are______?
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MCQs:  Least perfect square number, exactly divisible by 21, 36 and 56 is_________?
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MCQs:  HCF and LCM two numbers are 12 and 396 respectively. If one of the numbers is 36, then the other number is_______?
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MCQs:  Five bells first begin to toll together and then at intervals of 5, 10, 15, 20 and 25 seconds respectively. After what interval of time will they toll again together?
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MCQs:  Find the least number of five digits which is exactly divisible by 12, 15 and 18?
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MCQs:  The smallest number which when divided by 20, 25, 35 and 40 leaves a remainder of 14, 19, 29 and 34 respectively is________?
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MCQs:  A heap of coconuts is divided into groups of 2, 3 and 5 and each time one coconut is left over. The least number of Coconuts in the heap is_______?
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MCQs:  The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is__________?
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MCQs:  The least number of five digits that have 144 their HCF is__________?
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MCQs:  The greatest number of four digits that have 144 for their HCF is___________?
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MCQs:  The least number of four digits which is divisible by 4, 6, 8 and 10 is_________?
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MCQs:  The greatest number of five digits which is divisible by 32, 36, 40, 42 and 48 is_________?
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MCQs:  The product of two digits number is 2160 and their HCF is 12. The numbers are________?
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MCQs:  Four bells begin to toll together respectively at the intervals of 8, 10, 12 and 16 seconds. After how many seconds will they toll together again?
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MCQs:  The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is________?
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MCQs:  The least number which when add 3 to it, completely divided 8, 12 and 18 is_______?
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MCQs:  The least number which when divided by 8, 12 and 16, leave in each remainder 3, is_______?
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MCQs:  The least square number which divides 8, 12 and 18 is________?
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MCQs:  The least number which when divided by 16, 18 and 21, leave the remainder 3, 5 and 8 respectively is___________?
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MCQs:  The product of two numbers is 2025 and their HCF is 15 their LCM is____________?
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