The sum of two and the product of 23 is 120. The sum of the areas will be:

The HCF and the LCM of two numbers are 5 and 120, respectively. If the sum of the two numbers is 55, then the sum of the reciprocals of these two numbers is equal to:

The LCM of four consecutive numbers is 60 The sum of the first two numbers is equal to the fourth number. What is the sum of four numbers? 

A number between 1000 and 2000 which when divided by 30, 36 and 80 gives a remainder 11 in each case is:

The LCM of two numbers is 48. If those numbers are in the ratio 2 : 3 then what will be their sum?

The smallest five digit number which is divisible by 12, 18 and 21 is:

The number between 4000 and 5000 that is divisible by each of 12, 18, 21 and 32 is 

LCM of two numbers is 56 times their HCF, with the sum of their HCF and LCM being 1710. If one of the two numbers is 240, then what is the other number?