HCF & LCM of numbers

Are you preparing for campus placements,Banking,SSC, IAS, Insurance,Defence and other competitive exams? Then, make sure to take some time in practicing the LCM & HCF questions and answer in Quantitative Aptitude. Moreover, only those questions are included that are relevant and likely to be asked in any competitive exam. So, take these questions and answer, brush up your skills and practice to stay fully prepared for any your exam.

  • Q1.Four metal rods of lengths 78 cm, 104 cm, 117cm and 169cm are to be cut into parts of equal length, Each part must be as long as possible. What is the maximum number of pieces that can be cut?

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  • Q2.Five persons fire bullets at a target at an interval of 6, 7, 8, 9 and 12 seconds respectively. The number of times they would fire the bullets together at the target in an hour is

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  • Q3.Rubina could get equal number of Rs. 55, Rs. 85 and Rs. 105 tickets for a movie. She spends Rs. 2,940 for all the tickets. How many of each did she buy?

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  • Q4.There are some parrots and some tigers in a forest. If the total number of animal heads in the forest is 858 and the total number of animal legs is 1,846, what is the number of parrots in the forest?

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  • Q5.When-all the students in a school are made to stand in rows of 54, 30 such rows are formed. If the students are made to stand in rows of 45, how many such rows will be formed?

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  • Q6.Ram wants to utilize his unused field and plan to plant some trees, he plant 88 guava trees, 132 papaya trees and 220 sugarcane trees in equal rows (in terms of number of trees). Also, he wants to make distinct rows of trees (i.e. only one type of tree in one row).Calculate the minimum number of rows?

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  • Q7.Rohan, Sumit and Amit start from the same point and travel in the same direction round a circular garden 12 km in perimeter. Rohan travels at the rate of 6, Sumit at the rate of 5 and Amit at the rate of 2 1 2  km/hour. In how many hours will they come together again?

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  • Q8.The greatest number that will divide 796, 872 and 1084 leaving 14, 22 and 30 as remainders, respectively is:

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  • Q9.In Aegis BPO, Gurgaon, it is observed that it gets a call at an interval of every 10 minutes from Austria, at every 12 minutes from Brussels, at the interval of 20 minutes from Athens and after every 25 minutes it gets the call from Paris. If in the early morning at 3:00 a.m. it has received the calls simultaneously from all the four destinations, then at which time it will receive the calls at a time from all the places on the same day?

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  • Q10.In Jhandewalan Temple there are some magical bells which tolls 9 times in a day, simultaneously. But every bell tolls at a different interval of time, but not in fraction of minutes. The maximum number of bells in the temple can be:

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