Who is the supreme law officer of

Three numbers a, b and c are co-prime to each other such that ab = 63 and bc = 77. Find the value of (a + b + c).

The LCM of two numbers is 540, and their HCF is 18. If one of the numbers is 90, find the other number.

Let N be the greatest number that will divide 85, 116, 147 leaving the same remainder in each case. Then sum of the digits in N is:

The HCF of 2165 and 7409 is 239, their LCM is:

LCM of two numbers is 5 times their HCF. The product of the numbers is 4500. What will be the maximum possible difference between the numbers?

Three numbers are in the ratio 6:9:10 respectively. If the HCF of the numbers is 3, then find the LCM of the numbers.

Let N be the greatest number that will divide 92, 114, 136 leaving the same remainder in each case. Then sum of the digits in N is:

Ratio of two numbers 9:16 and their LCM is 2880. Find the sum of the given two numbers.

The HCF of two numbers is 6 and their LCM is 72. If one number is 18, find the other number.