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Question 1
The LCM of two numbers is 2900% more than their HCF and sum of LCM and HCF of the two numbers is 310. If one of the number is 20, find the other number.
Question 2
What is the LCM of 64 and 56?
Question 3
If x : y be the ratio of two whole numbers and z be their HCF, then the LCM of those two numbers is:
Question 4
The sum of two numbers is 36 and their HCF is 4. How many pair of such numbers are possible?
Question 5
Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.
Question 6
Common factor of 
is
is Question 7
The traffic lights at three different places changes after 48 sec, 72 sec and 108 sec if they all change simultaneously at 8:20:00 hours , then at what time will they again change respectively?
Question 8
The product of two 2-digit numbers is 2160 and their H.C.F. is 12. The numbers are
Question 9
HCF and LCM of two numbers are 11 and 825 respectively. If one number is 275, find the other number.
Question 10
What is the smallest number which when divided by 9, 11, 15, 19 and 31 leaves a remainder of 3 in each case?
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Sep 15SSC & Railway
