The least number, which is a perfect square and is divisible by each of the numbers 16, 20 and 24 is 

The least multiple of 7, which leaves the remainder 4, when divided by any of 6, 9, 15 and 18, is 

The largest 4 - digit number exactly divisible by each of 12, 15, 18 and 27 is : 

A number which when divided by 10 leaves remainder of 9, when divided by 9 leaves a remainder of 8, and when divided by 8 leaves a remainder of 7, is: 

If the students of a class can be grouped exactly into 6 or 8 or 10, then the minimum number of students in the class must be. 

A milkman has 75 litres milk in one cane and 45 litres in another. The maximum capacity of container which can measure milk of either container exact number: 

The least number, which when divided by 4, 5 and 6 leaves remainder 1, 2 and 3 respectively is:

HCF and LCM of two numbers are 7 and 140 respectively. If the numbers are between 20 and 45, the sum of the numbers is: