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Question 1
What is the HCF (Highest Common Factor) of 57 and 513?
Question 2
The two numbers are 63 and 77, HCF is 7. Find the LCM.
Question 3
What is the HCF (highest common factor) of 133 and 112?
Question 4
HCF and LCM of two numbers are 11 and 825 respectively. If one number is 275, find the other number.
Question 5
The sum of two numbers is 36 and their H. C. F and L. C. M are 3 and 105 respectively. The sum of the reciprocals of the two numbers will be :
Question 6
A farmer has 945 cows and 2475 sheep. He farms then into flocks, keeping cows and sheep separate and having the same number of animals in each flock. If these flocks are as large as possible, then the maximum number of animals in each flock and total number of flocks required for the purpose are respectively
Question 7
Find the least number which must be subtracted from 2423 so that the resultant number when divided by 15, 25 and 40 leaves remainder of 7 in each case.
Question 8
There are three classes A, B and C with 72, 96 and 144 students respectively. Find the minimum number of small groups in which they can be divided such that each group has students from one class only and each small group has equal number of students.
Question 9
How many numbers between 400 and 800 are divisible by each 4, 5 and 6?
Question 10
The ratio of two numbers is 3 : 4 and their H.C.F. is 4; then their L.C.M. is:
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Jul 1ESE & GATE EE
