DELHI POLICE MATHS QUIZ

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Question 1:

HCF of p and q is 12, r and s is 15, t and u is18. What is the HCF of $p, q, r, s, t, u ?$

Question 2:

If the sum of two numbers is 48 and their HCF and LCM are 4 and 64 respectively.Then sum of the reciprocals of the two numbers will be?

Question 3:

The LCM of two numbers $x$ and $y$ is 204 times their HCF. If their HCF is 12 and the difference between the numbers is 60 , then $x+y=$ ?

Question 4:

LCM and HCF of the two numbers are 180 and 12 respectively. If one number is 24 then find the second number ?

Question 5:

Find the smallest number, which when divided by $8,12,20$ or 25 leaves a remainder 5 in each case?

Question 6:

Two numbers are in ratio 3: 8 and their HCF is 7 . Their LCM is:

Question 7:

The least number which when divided by 9,13,17 and 12 leaves a remainder 7, but when divided by 25 leaves no remainder is:

Question 8:

The LCM and HCF of two numbers are 3564 and 81 , respectively. If the numbers are 324 and $x$, then what is the sum of the digits of $x$ ?

Question 9:

Three numbers are in the ratio 4: 9: 13 and their LCM is 2340 . Their HCF is:

Question 10:

The HCF of 2091,3485 and 4879 is $x$. The sum of the digits of $x$ is: