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Practice HCF and LCM Questions and Answers

Two men started moving in a circular path from the same place at the same time in the same direction. If they complete one revolution in 12 min and 16 min ...
Three numbers are in the ratio 2:3:4 and their HCF is 24. Find the numbers?
If the ratio of two numbers is 8 : 9 and their HCF is 6 then their LCM will be : ...
If HCF of two numbers is 16 then which of the following can never be their LCM? ...
If HCF of two numbers is 11 then which of the following can never be their LCM?
If HCF of two numbers is 27 then which of the following can never be their LCM? ...
Find the greatest number which when divide 80,121 & 148 leave remainder 2, 4 & 5 respectively?
Find the greatest number which when divide 69,103 & 171 leave a same remainder 1 in each case?
Find the greatest number which when divide 28, 82 & 109 leave a same remainder 1 in each case?
Find the greatest number which when divide 33,55 & 77 leave a same remainder in each case? ...
Find the greatest number which when divide 25,40 & 55 leave a same remainder in each case? ...
Five bells commence tolling together and tolls at intervals of 2, 6, 10, 18 and 24 seconds respectively. In 36 minutes, how many times do they toll togethe...
Five bells commence tolling together and tolls at intervals of 6, 12, 36, 42 and 60 seconds respectively. In 126 minutes, how many times do they toll toget...
The least number which is exactly divisible by 10,15 and 20 is ...
The least number which is exactly divisible by 15, 25 and 30 is
The least number which is exactly divisible by 9, 27 and 36 is ...
The least number which is exactly divisible by 5, 15 and 35 is
The least number which when divided by 5, 15 and 25 leave a same remainder 2 in each case?
The least number which when divided by 6,18 and 20 leave a same remainder 3 in each case?
The least number which when divided by 8,16,22 and 32 leave a same remainder 1 in each case? ...
The least number which when divided by 16, 32 and 48 leave remainder 4, 20 and 36 respectively is?
The least number which when divided by 3, 9, 27 and 81 leave remainder 2, 8, 26 and 80 respectively is?
The least number which when divided by 12, 27 and 39 leave remainder 8, 23 and 35 respectively is? ...
The H.C.F of two numbers is 3 and their L.C.M is 782. If one of the numbers is 34, find the other?
The H.C.F of two numbers is 2 and their L.C.M is 117. If one of the numbers is 13, find the other?
The H.C.F of two numbers is 8 and their L.C.M is 136. If one of the numbers is 64, find the other?
The sum of two numbers is 65 and their HCF is 13. Total number of such pairs of numbers is?
The sum of two numbers is 126 and their HCF is 14. Total number of such pairs of numbers is?
The sum of two numbers is 99 and their HCF is 9. Total number of such pairs of numbers is?
The sum of two numbers is 104 and their HCF is 13. Total number of such pairs of numbers is? ...
The sum of two numbers is 96 and their HCF is 24. Total number of such pairs of numbers is? ...
The product of two numbers is 10140 and their HCF is 13. Total number of such pairs of numbers is? ...
The product of two numbers is 504 and their HCF is 6. Total number of such pairs of numbers is?
The product of two numbers is 972 and their HCF is 9. Total number of such pairs of numbers is? ...
Find the least number of four digits which is exactly divisible by 6, 24 and 32?
LCM of 21 5 , 21 10 and 21 15 is? (1). 21 5 (2). 21 15 (3).2130 (4 ). 21 10 ...
What is the minimum number of square marbles required to tile a floor of length 2 metres 8cm and width 2 metres 86 cm?
What is the minimum number of square marbles required to tile a floor of length 4 metres 35cm and width 3 metres 60 cm?
What is the least number which when divided by 4, 6 & 8 leave a remainder 6 in each case & it is also divisible by 5?
What is the least number which when divided by 3, 15 & 18 leave a remainder 6 in each case & it is also divisible by 12?

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