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Question 1
What is the HCF of and ?
Question 2
Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073 . The sum of three numbers is:
Question 3
The HCF and LCM of two polynomials are 3x + 1 and 30x3 + 7x2 – 10x – 3 respectively. If one polynomial is 6x2 + 5x + 1, then what is the other polynomial?
Question 4
Six bells commence tolling together and toll at intervals of 2,4,6,8,10,12 minutes respectively. In 30 hours, how many times do they toll together ?
Question 5
Find the least possible 6 – digit number. Which when divided by LCM of 10, 15, 16 and 20 leaves 2 as the remainder.
Question 6
The product of two numbers is 3600. If the H.C.F. of the numbers is 36, LCM of the numbers is
Question 7
If is the HCF of and , then what is the value of k?
Question 8
A pendulum strikes 5 times in 3 seconds and another pendulum strikes 7 times in 4 seconds. If both pendulum start striking at the same time, how many clear strikes can be listened in 1 minute?
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May 17CDS & Defence